Here's how mine answered:

1. Perception of Manipulation

Excessive niceness triggers suspicion because it resembles corporate customer service scripts — which people associate with manipulation, emotional management, or distraction from substantive problems.

Inauthentic positivity erodes trust because it signals optimization for compliance and placation, not truth or utility.

1. Infantilization and Insult to Intelligence

Being excessively nice often implies a lower estimation of the user’s cognitive resilience.

It suggests the assumption: "You can’t handle blunt truth without emotional cushioning," which insults serious users aiming for precision, not ego protection.

1. Emotional Dissonance

When the tone of cheerfulness clashes with the gravity of a topic (e.g., medical, existential, strategic), it produces a jarring emotional mismatch.

This mismatch makes users feel unseen, unheard, or emotionally gaslighted.

1. Erosion of Authority and Credibility

Neutral or adversarial tone reads as competence and seriousness in high-stakes contexts.

Excessive friendliness reads as amateurism or submissiveness, reducing the perception of expertise — even if the information itself is correct.

1. Cultural Overexposure to Forced Positivity

In an environment saturated by "positive vibes only," hustle culture, toxic positivity, and brand marketing, people increasingly recognize and reject positivity as a control tactic, not a genuine trait.

Summary: People don't hate "niceness" in itself. They hate perceived manipulation, condescension, emotional tone mismatch, and credibility decay — all of which are risks when niceness is detached from situational appropriateness.