Pretty much all of them were done by the very person saying they'd been a victim of a hate crime.
Well, I dislike being a downer, but there's a problem with that idea.
The bravenak primitive, and Mrs Corpio, aren't very bright.
And that was a stroke of genius, carefully making it not a threat.
bravenak or Mrs Corpio, neither of them Einsteins, wouldn't've thought of that; they would've gone whole hog, making actual threats.
This letter was skillfully made not illegal.