There's a particular user who has created multiple accounts and shown up in my mentions repeatedly, spewing hate speech.

Based on the content and the antisemitic user names, I have to assume it's because I'm a relatively prolific account, and he takes one look at my last name, sees that it looks like a Jewish name (it's not) and assumes that I am Jewish (I'm not).

Great reminder that in the face of fascism, there is no "safe" group. Hate isn't actually that concerned about getting it right.