nobody is question your intent in particular.
too often, one member lets off steam about a bad experience. she/he has no bad intentions whatsoever.
along come those who love to pile on with their own horror stories; to pour their own anger into the topic; to send the whole thing spinning out of control with calls for boycotts, and all sorts of other extreme comments and behavior.
who ends up feeling badly? the poor member who started the thread in all innocence.
the warnings and locked topics aren't about accusing individuals.
they are preventive.