For the Evangelist title, you may read this lengthy discussion thread:

http://www.flyertalk.com/forum/talkb...ist-title.html

For other non-post-count-related titles, the "View Forum Leaders" link (at the bottom of Forum homepage) shall give you some ideas. Unfortunately, unlike airline/hotel elite status, none of the listed group leaders on FT can be "earned." They are either "appointed" or elected (per TalkBoard). The majority of FTers are happily title-free and just enjoy FT.