Comments?

I have approved 81 comments so far. Well, that’s the total. If I approve one from a commenter, future ones from the same source don’t need approval. Thing is, I get more than 81 comments in a week. Not sure what the scam is, but it’s got to be a scam. Any comments that anyone but myself sees, though, is approved and safe. But I am curious as to what scam is being attempted. If anyone knows, could you drop me a comment below with that info? I’d appreciate it!