you don't contribute through your sigs though
Instead of a sig, then, how about an updated profile page, almost like (gasp) MySpace?
i already thought about having a rather full featured profile page instead of sigs and i think this is a great idea. It'll consist of something like
* IM info (Jabber, ICQ, Gtalk, Skype, MSN, bla...)
* An info text about yourself (think "big signature")
* Friends network? (this is something to be evaluated, but might make sense since PMs are replaced by emails)
PM's are uber important, how else can I contact a person without any of their other info
You need an email address to register, so there's a way to contact people. And if the PM system is transparent you don't even need to know the other persons email address.
think "PMs, they just end up in your mailbox instead of on a forum page".
i always hated how i get an "PM received" notification, need to go to the forum, read the pm and answer there.
instead i want to get a "here's a PM, read the text" mail, and a) reply via mail (a special service in the forum takes care that it's send to the other forum user), or go to the forum and reply there.