Why are the people on DC like that???

When I posted on DC that looking for a composer on Reddit might not be a good choice,
someone replied saying that looking at my post, I seem to have borderline intellectual disability.
But this isn't just a one or two-time thing.
They pick a fight over every little thing.
If I get angry, they call me an anger management sufferer and mock me, saying "Why are you so mad? lol"
They call me an Asperger's (when they are actually the ones with Asperger's)
They call me schizophrenic over every little thing.
Why on earth do they do that?
They are constantly picking fights.
They truly seem like idiots.
They are people who have repeated the cycle of being socially maladapted, maladapted, maladapted, maladapted, maladapted, maladapted, maladapted—99% of them are screwballs who are socially maladapted.
I really don't understand why they act like that.
At the slightest provocation, they immediately post poop memes, old lady memes, or clickbait posts.
They are barely human.
And what I understand the least is how they "archive" (call out) people.
Like archiving someone for calling an onion "garlic," or archiving someone for drinking beer instead of soju with pork belly.
Or archiving someone for saying the exact same thing in a different gallery.
It's always like that.
I don't understand why they do it.
These people don't even sleep.
Their main active hours are in the early morning.
Do they not even have jobs?
Why are they like this?