Sin: Mass claiming, even flavour claiming due to the closed environment we have, shrinks the guessing games significantly for both sides. We have to figure out who makes the worst claim, while we make characters such as Sam, Dean, Bobby and Cas pretty much instant targets. Depending on who all is shown, we might lose our healer night one, and then we better believe we can quickly figure out who the scum are fast. Your claim of Rufus VT actually may have made that harder, because it shows what kind of character is relegated to being a VT. We also have the problem that almost any hunter could be PGO or Macho. I do agree mass claiming is an option, I'm not sure I like having it come from someone who claimed VT.
While what he did may have been scummy or hurtful, unless we think he's lying or going to hurt us more, I don't think it would be worth it to lynch him. All the information we'd get currently is "who is willing to wagon a VT". At the very least, Nem, could you explain how lynching him is better than just going NL? Note: "he's black" isn't sufficient.
Dick Roman is from Season 7, which I won't be starting till today. Castiel could be good, evil, VT, 3rd party, god, lyncher going after Raphael, or what have you, depending on WHICH version we are working with. However, I'm leaning towards agreeing with OB. We have similar issues with characters such as Anna, Crowley, Ruby(if you REALLY want to stretch things), Death, and the list goes on and on in this show. We can make educated guesses, if they show up, but we may have some surprises.
Beyond that, seems everyone is waiting for Stan.