Due to stupidity on my part, I left the group in an attempt to delete it (I wanted to remake it to I could make it a publicly joinable group). It didn't work.
So I got splatmatic (who was promoted to leader) to invite me back and kick all you loosers out. Now that I'm leader again, I invited everyone back.
I think I'll just not worry about private/public as that way idiots can't join.
So yeah, I'm a moron, sorry. Let me know if you didn't get a fresh re-invite.