[anigbrowl]

are 'calls for genocide' actually a thing worth caring about?

If you're a member of the subject group, then they most certainly are. Instead of constructing silly examples, let me suggest you look into the history of ethnic cleansing in Yugoslavia or Hutu-Tutsi animus in Rwanda.

[abiox]

military or organized physical violence is not the same as a random yokel saying dumb things on the internet.

invoking real world violence as a stand-in for which one calibrates their regard for a person's tweets seems more like an emotional appeal rather than a logical dialog.

[anigbrowl]

The internet is a great organizing tool, and you have no way to know whether any given comment is random or coordinated.

[abiox]

seems like a nonsequitur; either way, if a bad guy wants to throw away opsec and publicly document information for a court to use as evidence... well, i guess it's nice that they're making policework much easier.