I change the admin password on Bisonville every three months. Well, I changed then immediately forgot the latest one so I haven't approved any new users for a while.
Fortunately, The River wanted to change their name to Rock and it forced me to hack away at the password until I got it. Anyway, new users have been approved, some were not (because their IP addresses were sketchy - example: Tim0900 with the Pakistan IP address, if you are a Bison fan, sorry, but I also found that Tim0900 was a new member on at least two other vbulletin sites which is another red flag), and The River is now Rock.