A global ban for promoting genocide or murder doesn't seem too complicated
That doesn't mean such a ban would be bad, but it is complicated, and someone who doesn't like genocide might still not want it.
A lot of people on Hacker News gets extremely upset when some site or institution decides to censor genocide advocacy, racism, or anything at all.
I don't mean banning racism, but enticement for violent action.
Moderating spam is easier. Apparently it's hard to tell between "we should kill these people" and "these people are being killed" due to a language barrier sometimes, and it's hard to automate.
But wow. You all think "let's kill these people" somehow has more value than "buy my shit/here is a malware link", nice. downboat away