Fabbs is just incredibly socially awkward... some of the others on your list are pure bat
1. boutons - perennially angry, paranoid that everybody on earth besides him is a rightwingnut. probably most likely person on ST to commit a mass shooting
2. Cosmored/Fat Freddy - actually bat but likely harmless
3. Chris - dude believes in demons and . thinks all democrats are satan worshippers, etc.
4. Avante - more creepy than anything else. just just an old guy stuck in his racist/sexist ways, which in itself isn't unusual. but his dark past puts him on this list
5. UNT - pathological liar, definitely socially awkward. threatens suicide, etc.
honorable mention: TSA (went from just being a gun nut to conspiracy theorist extraordinaire, rivaled only by cosmored... but i think its more to do with him being hyperpartisan and dishonest than actually bat ), Wild Cobra (dishonest all the time... triangulating location of strangers
)