I'd like to put my 2 cents in. I don't post much, unless I have something to say, but as Pixel said, I do like to read the board and would hate to be deleted for not posting. Also, when I moved, I didn't have internet access for almost two months, and as far as I know, I'm not the only one who went through a lenghtly absence.
So I can only agree with Pixel. Maybe deleting people who haven't logged in for, say, 6 or more months would be acceptable. Also trolls. I left the old board because toward the end it really got ugly and would hate to see the same happen here.

On that note, thank you Brad for telling me about this place.