I'm not naming names, but I just want to encourage people on here or on Reddit or Twitter, and tell you that you do NOT have to tolerate people who act like schoolyard bullies in the way they speak to you online.
I think anonymity is a big part of it. They feel like there is zero accountability so they can be a bully all they want.
I recommend just ignoring or blocking anyone who is verbally abusive or treats you like schoolyard bullies treated you.
Life is way too short to spend any time dealing with those kinds of people.