Indeed, hellgremlins are a cancer that needs to be stopped from spreading or they’ll kill the fandom a third time. It’s hard to introduce the fandom as being about cute and loving creatures in a cold harsh world if there are pics depicting them as disgusting psychopaths littered among them, which is why we really should create a separate category for the hellgremlin content asap. Otherwise people who’d like the original fluffies will see the fandom as something they’d hate, and the snowball effect of death would destroy the fandom like it has done twice already.
If you’d like to help inform more newcomers about the difference between fluffies and hellgremlins, here’s a handy infograph I made: What's a Hellgremlin? by:Foxhoarder
And if you’re interested in the history of the fandom and why the hellgremlins are such a severe threat for it, here’s a more detailed post about it too: History of the Fandom by:Foxhoarder