Here are some statistics that might interest you about how things have gone since I turned the comments back on here a week ago.
Over the last 7 days there have been 10 comments from real people commenting about real things – “ham” in the spam-fighting game.
During the same 7 days, Mollom, which I am using to filter spam, has stopped 1,421 spam comments.
Two or three pieces of spam are still getting through each day, which I must manually delete: these are usually of the “heap praise” variety of spam, things like “that’s a really great post that I found really great interesting,” with the author’s name linking, because I allowed a “home page” entry on the comment form, to sites selling jeans or sunglasses or domain names or whatever.
These two or three a day are annoying and dispiriting, but I’m a lot better off than I would be deleting 200 spam a day without filtering.