I always take the “trust, but verify” approach, which means that instead of anticipating trouble, I wait to see what happens. Often in turns out that “abolutely necessary” precautions aren’t necessary. But sometimes it blows up in my face.
So I wasn’t too surprised when some spammer left “comments” on most of the posts, offering to sell you pills to put extra lead in your pencil. I’ve tightened up the anti-spam features of the blog to see if that helps. If not, there are other things I can try.