I think it's one of those things were it's not that hard to figure out. If you or I post a link to something with a link in it, it's likely to be as part of something else. I occasionally post a book link, for instance, but it's not something I do often or regularly for the sake of making money. Real spammers are unlikely to really participate in the community enough to not be completely obvious spammers. One glance at frisco's page, for instance, tells you that he's not.

I just don't really see the problem.