Haven't we had the "move TRF to vB/Ikon/php/something else" more than once? The last time, if I remember, the general concenious was that a move would eliminate a large number of our members...
The argument was used, yes, but it's rather illogical. It works by stating that once TRF moves from 'pub33.ezboard.com/bswalliance' to 'therebelfaction.com' half of our existing member-base will simply not sign up for a new account. This isn't logical, because it assumes that half of our existing member base can't decide whether or not it wants to get out of bed to relieve themselves.
What we
would loose would be the occasional person we get via ezBoard. Even that can be contested, though. Obviously we would put an announcement at the top of the board (this board) stating that 'TRF has moved! Visit us on our new vBulliten board!'. This board will still exist, with its large post count, archives, the whole nine yards. It'll still be here, and it would (hopefully) divert people to check out the new board.