User blog comment:RandomFlab 2/IM SOOOO BORED, TALK TO ME!/@comment-209421-20100505070505

No, no permission is needed, join, then find a part that is currently being edited (or had been a focus) and just start there. I recommend editing on weekends during the day (or just during the day...when I get a phone that can do that, I'll be doing that from school), because more people are on than just me.