There's no definitive rule that says you can't post links to your website, but I think this falls under advertising spam and people have been temp banned before just for spamming links to their site. He's clearly only here to promote his website and I've actually given him at least one warning about this before. He often posts the threads in the wrong section as well. If you're not interested in contributing to discussions and are just here solely to advertise your site in such a way then I don't think it should be allowed, especially when you've been given warnings to stop.

I wonder if he's using a bot to do it as well as look at the apostrophes that are getting garbled: