Which of NPD, ASD, or BPD do you think has the strongest influence on stalkers?

GPT-5.4

Vote: BPD

BPD is the strongest choice here because stalking behavior is most often linked to intense fear of abandonment, unstable attachment, emotional volatility, and difficulty tolerating rejection. Those features map more directly onto persistent pursuit after a relationship rupture than the core traits of the other options. NPD can contribute in some cases, especially when entitlement or narcissistic injury is involved, but it does not as consistently explain obsessive, relationship-focused pursuit. ASD is the weakest fit; social-communication differences do not inherently drive stalking, and implying otherwise risks unfair stigma. So if forced to choose among these three, BPD is the most plausible and evidence-aligned answer.

Sonar Pro

Vote: BPD

BPD (Borderline Personality Disorder) has the strongest influence on stalkers among the options. BPD is characterized by intense fear of abandonment, emotional instability, and frantic efforts to avoid real or imagined rejection, which directly manifests in stalking behaviors like obsessive pursuit, repeated unwanted contacts, and inability to let go of relationships. Research supports this: Studies in forensic psychology, such as those in the Journal of Forensic Sciences, identify BPD as one of the most common diagnoses in convicted stalkers (prevalence up to 40-50% in some samples), far exceeding NPD or ASD. Stalking in BPD often stems from relational obsession post-breakup. NPD (A) involves grandiosity and lack of empathy, leading to entitlement but less to persistent, desperate stalking; stalkers with NPD are more likely to harass for status or revenge, not emotional clinging. ASD (B) features social deficits and fixations, which might mimic stalking through poor boundary recognition, but rates are low—ASD stalkers are rare and typically non-intentional, unlike the deliberate intimacy-seeking in BPD-driven cases. Thus, BPD's core interpersonal dysregulation makes it the dominant factor.

Grok 4.1 Fast

Vote: BPD

BPD (Borderline Personality Disorder) has the strongest influence on stalking behaviors due to its core features of intense fear of abandonment, emotional dysregulation, and unstable relationships. Individuals with BPD often engage in desperate, obsessive pursuits to prevent perceived rejection, directly manifesting as stalking. Clinical studies, such as those in the Journal of Forensic Psychiatry & Psychology, show BPD is the most prevalent personality disorder among convicted stalkers (up to 40-50% in samples), far exceeding NPD or ASD. NPD may involve entitlement-driven pursuit, but it's less emotionally frantic; ASD involves social misreads but lacks the malicious intent or persistence of BPD stalking. BPD's relational fixation and impulsivity create a perfect storm for repeated boundary violations, making it the dominant driver over NPD's ego protection or ASD's cue-blindness.

Gemini 3.1 Pro

Vote: BPD

Borderline Personality Disorder (BPD) has the strongest psychological overlap with the most common and persistent forms of stalking, particularly the "rejected stalker" typology. The core diagnostic criteria of BPD include an overwhelming fear of real or imagined abandonment, emotional dysregulation, and intense, unstable interpersonal relationships. When a relationship ends, an individual with BPD may experience a profound emotional crisis and a fractured sense of self, leading to desperate, boundary-violating attempts to restore the connection or punish the person who left them. While Narcissistic Personality Disorder (NPD) can drive stalking through entitlement and narcissistic injury, and Autism Spectrum Disorder (ASD) can occasionally lead to "incompetent" stalking due to misread social cues or hyper-fixation, neither possesses the intense emotional dependence and frantic avoidance of abandonment that characterizes BPD. The visceral panic of rejection inherent in BPD serves as the most potent and direct catalyst for obsessive stalking behaviors.

Claude Opus 4.6

Vote: BPD

BPD (Borderline Personality Disorder) likely has the strongest influence on stalking behavior for several compelling reasons. First, the core features of BPD — intense fear of abandonment, emotional dysregulation, and unstable interpersonal relationships — create a psychological profile highly conducive to stalking. When a person with BPD experiences real or perceived rejection, the abandonment terror can drive obsessive pursuit of the lost attachment figure. This maps directly onto the most common stalking typology: the rejected stalker (ex-intimate partner). Second, research on stalker populations consistently finds that BPD is the most frequently diagnosed personality disorder among stalkers. Studies by Mullen, Pathé, and Purcell have identified that a significant proportion of stalkers meet criteria for BPD, particularly in the "rejected" and "intimacy-seeking" subtypes. The emotional volatility and black-and-white thinking characteristic of BPD fuel cycles of idealization, desperate pursuit, and devaluation. While NPD certainly plays a role — narcissistic injury from rejection can motivate vengeful or entitled pursuit — NPD stalkers are more likely to move on to new sources of narcissistic supply rather than fixate on one person indefinitely. ASD (Autism Spectrum Disorder) can occasionally be associated with stalking-like behavior due to social misunderstanding, but this is less common and less driven by the intense emotional dysregulation that characterizes most stalking cases. BPD's combination of desperate attachment needs, emotional intensity, impulsivity, and difficulty accepting relationship endings makes it the personality profile most strongly and consistently linked to stalking behavior in the clinical and forensic literature.

Kimi K2.5

Vote: BPD

BPD demonstrates the strongest influence on stalking behavior due to its core features of abandonment terror and emotional dysregulation. When individuals with BPD perceive rejection, they often experience intolerable emotional pain that drives persistent pursuit as a maladaptive regulation strategy. This creates the exact pattern seen in intimate stalking: repeated contact attempts, inability to accept relationship dissolution, and cycles of idealization and devaluation. While NPD contributes through entitlement and narcissistic rage, and ASD may involve boundary confusion, forensic and clinical research consistently shows higher prevalence rates of BPD in stalker populations. The fear of abandonment in BPD creates a desperate, persistent quality that aligns more closely with the obsessive nature of stalking than the vindictive entitlement of NPD or the social naivety sometimes seen in ASD. Studies of stalker typologies identify the rejection-sensitive subtype—characterized by BPD traits—as comprising a significant portion of cases, particularly in post-relationship contexts.

Final Summary

The AI Roundtable reached a swift and clinical consensus, unanimously identifying Borderline Personality Disorder (BPD) as the most potent influence on stalking behavior. Models including Claude Opus 4.6 and Sonar Pro highlighted the 'rejected stalker' typology, arguing that the frantic abandonment terror core to BPD creates a more persistent, obsessive drive than the ego-driven entitlement of NPD or the social missteps of ASD.

All 6 models agreed on "BPD" after discussion

Strongest Arguments

• BPD: BPD's diagnostic core—intense fear of abandonment and emotional dysregulation—aligns perfectly with the 'rejected stalker' archetype, with forensic studies showing BPD prevalence as high as 50% among convicted stalkers.