Since that user continuously adding same links on his/her most of post so it should consider as a advertisement. Hope moderators will take appropriate action.
Yeah this should be considered as advertising on a post since if you look at the posts he made on his own threads like this one you'll see that he really does not care about the topic he made but he cares more about promoting the website he is trying to show. Even that topic that are out of the topic he is trying to still promote the website. If he was only doing this kind of promotion on related topics and he does not do it blatantly then I think this can be allowable.
