I just found out that you can ping people of a specific role so this has more uses than just silly labels.
backroute conductor -- should go out to everyone (not just Arty) who backroutes a lot (pretty much everyone who tests a lot?)
old timer -- for people who have been a part of the community for ... 10+ years say? or maybe 5+ . This is not to brag about being wiser or anything; it's for the benefit of someone, say a newcomer that has a question; can ask an 'old timer' who's more likely to have an answer, about say, something pertaining to the old forum.
level designer -- obvious maybe content creator is better? to encompass those that make graphics, music and games too?
contest winner -- why is Icho the only person with this? He's not the only person who has won a contest.
lemmings champion -- same as above; I think certain people are just known to be above average at the game like Icho, geoo cxx (I realize the last two aren't on discord) but the point still stands.
coder/programmer - Simon, nepster, namida, Icho(?)...
Lix - for everyone who plays lix (to help start games)
Ultimate Chicken Horse - for everyone who plays UCH (to help start games)
Gaston -- because why not? I wanna be Gaston, whoever wants to be can be Gaston.