>>52Banning login credentials should be more than enough. Janitors can easily be vetted by allowing candidates to post pseudonymously while logged in, with their usernames made visible to the admins alone. I'd be surprised if some form of this wasn't already in use.
Demanding real names means the admins want to be able to pursue legal action against volunteers. This
might be considered necessary for admins because maintaining ownership of the servers is very difficult to do without disclosing identities, but I can think of no good reason to ask the same of janitors.