In my probably blatantly disregarded opinion, it's people whom we know well that can get back in if they want/we are okay with it.
Basically, Stup has gone through the "initiation process" and thus we are confident that he fulfills the requirements for joining. The newer applicants need to wait longer because they do not have the same experience with us that people like Stup do.
That said, it's not quite as simple to get back in as some of you guys are making it out to be. Delaid and I consider reasons for leaving/reasons for wanting to rejoin/past experience with the clan/personality traits/bagels before allowing for someone to rejoin the clan. We just do it sneakily. O:
P.S. repercussions*, evil.
P.P.S. I'll speak to Delaid and some of you IRCers regarding urbanlegend later.