I removed the link to the site because even though the linkback is a licence requirement, our spirit here is not to go for public hunting.
The owner of the website you mentioned does not know how much he is loosing by trying to cheat like this. He would have installed the zero duplicate, title optimisation and the dynamic meta tag mod if he had spent more time here, and thus, would most likely end up understanding why the deal really is fair and kept the link.
I appreciate the concern though, because the phpBB SEO project really is meant to build a working SEO solutions sharing community, which I think, quite many of us find useful.
So yes, this tiny linkback is a way to contribute to phpBB SEO project, and in the end, to the SEO solutions you are using, since of course, the more we will be here, the better tools we'll be able to dev and share.