[newuser88273]

Maybe you know about usenet. Of course, usenet is dead. However, one of the last groups to die was comp.lang.lisp, which is an instructive example in this context.

I submit that what, or rather who, kept comp.lang.lisp alive for so long beyond most of the rest of usenet was a guy named Eric Naggum. He may not have identified the sociopath aspect, but did have the entitled MOPs in his crosshairs and kept them out with (sometimes utterly brilliant, btw) flamage.

Sadly, comp.lang.lisp also points to something not mentioned in the linked post: Entitled MOPs and sociopaths will not just silently accept their exclusion.

When excluded, they attack, possibly indirectly through other venues. To this day, in an astonishing number of online discussions of Lisp culture, you're apt to find attacks on comp.lang.lisp in general, or Erik Naggum in particular, for the high crime of having once excluded (for example) an entitled MOP who wanted his homework done by comp.lang.lisp.