I have been trying to cull the numerous (read thousands per post) spam comments on my site. I've gone in and done bulk edit on them and done "do not allow" comments. I think it works except I logged into my dashboard this morning to find one of the posts I'd culled down to 0 comments now had 36. I'd really like to make it so people cannot post new comments on existing posts. I've got it so they can't comment on posts going forward.
Any help would be greatly appreciated. If it helps, I'm running version 3.5 and my Theme is Bouquet by Anonymous (version 1.0-wpcom). I do see that my theme has an update to version 1.1 but I haven't updated yet.