https://www.bigsoccer.com/members/ shows that the people with the most posts have one of these titles: Administrator Moderator BigSoccer Supporter Member+ Member (efernandez9) Fancy Title Here (Kryptonite) Red Card (Teso dos Bichos) A very stable genius (nicephoras) Trololololo (Cris 09) DynaChick v QuakeBabe v WildKate v Chewie23 (Hawkeye17) Obviously Member+ and custom titles exist even if they aren't given to anybody else.
Custom titles were part of BSSC (premium members) which I'm not sure it's possible to sign up for any longer.