Ew. I guess that technique works on less-moderated boards.
Oh, I wouldn't be surprised if there was a bunch of threads 72 pages back that have had this done to them. Editing a post doesn't bump it to the front page, so they can sit back there unnoticed.
The point isn't to get us to click the links, merely to have them present. The more things link to your page, the higher you go in search engine results.