Having a pic limit is just silly anyway. The page doesn't load any faster/slower if you have 4 posts with 4 pics each or one post with 16 pics.
I'd be happy to eliminate attached photos and force people to find off-site hosting for images (PhotoBucket, etc). Saves STN bandwidth and you get the full-res picture without those annoying thumbnails.
I'm in total agreement regarding photobucket. If keeping this site small-ish raises its chances of survival, I say lower the quantity of pics that can be attached. Thumbnails on vBulletin stink, and most image hosting sites are FREE.