@hawkeye10,
Rex/Cobbler is a meme fanatic, that is one of the biggest give-a-ways as to who it is. That's about all he posts. When he posts BS like he did in the gun thread and he gets called out on it, he just pretends they didn't post and keeps up the BS.
Bob at least responds. It's a majority of insults and name calling, but he at least replies. There are a few others who I just straight up place on ignore because of the unbelievable assholes they can be. All insult and no substance, who think they are smarter then they are.