The online left communities mostly exist to enable certain delusions. It’s there for NEETs to get affirmation their parents are abusive for demanding they get a job. Or for troons to cosplay as sexy sluts. For any of that to work that have to have a gentlenerd’s agreement not to call each other out on their obvious lies.
What’s interesting is that in some ways, this is outright admitted, and twisted into a moral rule: When somebody claims to be disabled, you’re not allowed to question it because
self-diagnosis is valid. When somebody claims they’ve been terribly abused, you aren’t allowed to doubt their story, because
you need to believe victims. In other words, you
must take the things people say about themselves at face value, and skepticism and doubt is evil and wrong.
In those circles, “no you aren’t” and “that didn’t happen” are pretty much declarations of war, because you’re openly denying somebody’s victimhood status and by extension, their social standing.
Suprisingly, in the early Tumblr days, egregious claims sometimes
did encounter open skepticism and doubt, but that was quickly squashed by concepts like “valid” and chastising the doubters as being ableist/transphobic/shitlords, until anybody who wanted to remain in good social standing got the message that questioning is not permitted. So like
@behindyourightnow said, it seems that most people who venture into unbelievable territory get just progressively more ignored, as that’s the only socially acceptable way to handle them until some brave soul finally throws down the gauntlet.