I think people saying that stuff are serious about advocating for political violence. I can’t imagine how it wouldn’t make things worse. Violence is a core element of fascist ideology, there’s clear utility in using the attention it brings for recruiting, the trauma it inflicts for hazing, the experience for training. I remember when I saw a particular famous clip of a nazi speaking in public and being punched in the face by a masked assailant, I had never even heard his name before then, but after that clip was all over the internet that changed for a lot of people, and it definitely didn’t get him to shut up. Maybe there’s situations where people need to be defended, or there is need for someone acting as a bouncer, but I suspect in many cases it’s some combination of useful idiots giving them what they want, or extremists on the other side who share their goals of agitating for armed revolution giving them what they want.
IIRC it spammed websites with traffic, didn’t conceal your IP at all, and some people got arrested for using it to make some websites go down for a very brief period. Basically a way to use people who didn’t know what they were doing as cannon fodder