all questions regarding this forum and site BrainDen.com as a whole (its features, rules, technical issues etc.) should be placed in "Comments and Suggestions" forum (that's the help-me thread you mentioned)
btw, I have been thinking about "recommend to a friend"/"invite a friend" link for a long time - mainly for non-forum pages ... I might implement it later ... however, for the time being you can copy link of any topic/post/page you like into mail/your site/blog/social network profile etc. (as I already mentioned in another thread - promote BrainDen.com)
threads in "Others" forum should have added value for more members, so friendship issues should be primarily discussed via PM/chat and not via threads
let me know if I understood your query correctly