It is indeed. It’s usually the forum regulars that do this sort of thing. So you’ll almost always run into them. As they are in just about every thread. Even worse is that Blizzard condones this behavior. Otherwise reports would have some impact. Blizzard clearly wants toxicity to be part of their forum.
Trust me, it’s never going to stop. This has gone on for years now. Blizzard has no interest in doing anything about the problem.
One of the reasons I quit is because I can’t figure out how to get better. The primary responses I get to asking questions are generic answers like, “play a meta deck” or simply trolling like “if you don’t know how to win you should just uninstall.”