The latest spam comment on this blog just got blocked. From this post.
Does rickrolling seems really long ago to you?
A larger mystery: why spam comments appear on posts from five years ago, and not on the latest ones. (This is usual, and regular if not particularly frequent.) Do the spammers think they'll have a better chance with the old posts of sneaking in unnoticed? But if so, why would they think anyone would ever see them?
I didn't get it either, but as I understand it, the actual purpose of link spam in comments is not to get real humans (or people like us) to click on whatever is linked, but to prove to the site-owners/suckers to whom the spammers have sold SEO services that, thanks to them, they're "all over the net."
Something on a five-yr. old item is less likely to be deleted, but still shows in searches, I guess.