I've just dig up this user on SU, which seems like a Spam-User against a website for document converting. The website however is free to use (registration needed, though) and might even be helpful in some of the answered questions.
My first thought was to flag and edit everything I find of that user, like said in a previous question of mine, but this seems to me like it is a bordercase...the mentioned website seems free to use, so it doesn't fall into the 'normal' Spam-Category...however, it sure floods SU with it, but on the other hand the link might be helpful to some people.
Your thoughts on this?