@jefftp I've also gotten many more personal attacks (or, at least, more have made it through to me) here than on Twitter. I'll bet in aggregate there are far more in my YT comments but, again, easy to ignore. There's thousands of them under most of my videos and the bad ones just disappear.
Here, though, there are shockingly few consequences for bad behavior - and it's generally up to the OP to take action against them and hope mods pay attention.