Writing about a behavior and encouraging people to engage in said behavior are distinctly different sorts of speech acts. I don't know what you find 'increasingly tenuous' about the very detailed and specific exhortations identified here. Writing such is of course not the same as committing it, but I don't agree with your position tha it's free of any culpability. Again, it seems like you're more troubled by people exhorting such behaviors being thrown off the platform than by the impact upon those targeted by such statements.

I'd be happy to die on the same hill as the guy who wrote "First they came for the Socialists, and I did not speak out— Because I was not a Socialist."