i've been a user of this board since 2007 and a too use a special mailadress, only for this forum. (and a special emailadress for each other forum.
call me paranoid, but thats the only option (for me) to check, if spam arrives, from where it came from).
as far as i can tell (i use a spamfilter software only in my thunderbird installation) i never have received any spam from this board, nor from any other phpBB board.
hopefully this will not and never change