If you're a shithead in a club, you get kicked out. If you're a shithead with your family, you get kicked out. If you're a shithead on the internet, you also get kicked out.
IA is not being "bad", here. They're just being inconsistent. Either doxing/harassment is casus belli to scrub content, or it's not.
We do know that Kiwifarms was doxing people, but I would like to see proof of these "antifa forums", please.
"Antifa" has become such an umbrella term, it's almost mythological at this point.