It is in America, for the most part. You can absolutely organize to harass people if the harassment is in the form of verbal abuse, for instance. Cloudflare is saying that something happened in the last few days on KF that was a genuine "emergency". I don't think this is just an excuse, actually – Prince seems unusually committed to honesty about this sort of thing. I presume people were organizing specific violent acts on KF, which is not "free speech" even in America.
Your second item isn’t even close to an illegal threat in the USA, it’s the loser equivalent of saying “mine is 12 inches”. It’s not true, never happened, and nobody believed them.
> second item isn’t even close to an illegal threat in the USA
They said they called people to "plant bombs" where the woman was going and had posted "armed men...waiting" for her. That sounds an awful lot like "the speaker means to communicate a serious expression of an intent to commit an act of unlawful violence to a particular individual" [1].
