I am one of the administrators for this blog. Among other things, it gives me a view of a dashboard where I can monitor all the comments that are posted on all the blog entries. I understand spam, and I get why some people still fall for it. I also know why people do it; they usually spam in order for their website links to appear on our blog and other websites so that their rankings will increase in search engine results (due to that site linking). So, in an associative kind of way, if Spam = increase search engine results due to site linking, and increased search engine results = better SEO, does Spam=SEO?