Be vary of fans.
If almost all your social feedback is positive, you will turn into an insufferable idiot, sooner rather than later.
Few to no exceptions. Most exceptions probably have abnormalities in their emotional processing or endocrine systems.
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A troll or emotional vampire out to make you feel bad *constantly* is trying the inverse: turning you into an insecure wretch.
But the occasional asshole? They're doing your personality a favor (by accident, of course).