There's quite a bit of paranoia going around because of our dear departed UltiemateDragoFernando.
I don't doubt that UP won't let this go, but I'd also caution against suspecting every lurker or new poster of being UP. Yes, UP is obsessive but he's also not particularly bright. If (or when) he does sneak back in here he'll stand out like dogs balls while trying to look surreptitious.
Or, he'll figure out that there's an entire internets worth of Disqus/Twitter/Reddit type sites where he can concern troll about alt-right manufactured outrages to folks who he'll never convince and who'll give him the verbal abuse he so craves. In any case, why give him the satisfaction of fighting each other over him? I'm pretty sure we can find plenty else to talk about.