I'm speaking of this user.
Many of their posts are merely links to a couple blogs, and I have flagged them as "not an answer" and left hopefully helpful comments for the user.
But while looking at their answers, I also noticed that it seems likely the blogs in question are their own; A number of their answer/links point to blog posts that were made on the same day as the answer was posted, and there are two blogs which are repeatedly linked to.
I know (suspect) that the requirement to share when you are affiliated with a product is not the same thing as requiring sharing when you are affiliated with a blog/site you are using as a reference. Of course, when sharing reference links to ones own content properly, it would seem to be beneficial to share that information.
But in this case, it seems the user in question is making blog posts almost directly targeting SO questions and then posting links as answers to them.
I suspect the "Not an answer" flags and comments left to indicate what we expect as an answer is probably sufficient here. Am I correct?