If I see a post like that I would simply report it as spam or add the user to my ignore list. I believe that if such posts receive a massive reports, mods will delete them asap. However, isn't that considered plagiarism? Even if the person posted a link it is evident that they just copied and pasted the content from that website. They should have at least quoted that (not the entire text) and made an effort to comment on it by adding value to their post.
I don't see any chances for that user to gain any merits from such behavior even after 10 years of consistently posting trash like that. Personally, I choose not to read anything like that as I consider it a waste of time.