I've noticed a pattern in StackOverflow and on another forum I participate on ... a user asks a question, always related to difficulties with corrupted PPT files, and within a short time, gets an answer with vague suggestions, some of them incorrect or irrelevant, and a link to the same site or forum page on the same site:
Here are some examples:
If you follow the link to the suggested forum, there are links to other forums (Technet, for example) where there are links to commercial file recovery programs.
If you look at the examples on SO above, you'll find that both the OP and the response come from people who've joined SO only within the last few days.
And the OP in one case, ClariceVerreau is the one who PROVIDES links to "answers" on the filerepairforum.com site. IOW, it's pretty clear that this is a setup. Spammers and shills.
What's the suggested way of dealing with this?