Signups would be simple. Everyone PMs Plum with their Main account with the name of their Alt account. Plum simply updates the Signup thread with the alt names only.
I dont really think it would matter if scum know who the personas behind their alts are, but it would be cool if they did stick with the Alt status only. The thing that I really like about this game is how much it will return to the root of what mafia is. Notoriety should be fairly minimized, and we can actually see skill at work, and who does and doesn't have it.
--
http://img218.imageshack.us/img218/3156/couchpotatocat.gif
http://cdn.jamesgunn.com/wp-content/uploads/Lollipop-Chainsaw-6.jpg