Shouki, I didn't post there because it wasn't constructive but here goes.
I don't see what much use interacting with people dressed as zionist, machines, or exiles, when we can pretty muchly do that already...I just have a feeling not many people are gooing to care, unless you are actually doing an event. Meeting a character from the movies, or popular LEt character is really cool, but there isn't much prize to meeting a regular joe who's dressed up as someone. The only way I think this would work is if these characters had their own storyline, and there were some reward to interacting with them (special quests, status, items, ect) otherwise, anyone can dress up how they want and roleplay.