Do you do it individually, or use like an app or something? Bc the Lemmy instance block does very little - only blocking communities but not users from that instance.

PieFed btw allows user blocking of any custom instance you want though:-) - I just switched to it today and think I am going to be happier here. It's not quite as polished as Lemmy, but on the other hand I don't see true user-level blocking *ever* being added to Lemmy no matter how long the wait. So I decided that I was tired of wading through the garbage rooting for treasure, and just decided to block it all.