Funny, the first thing that came to mind was using rel=”spam” …but really what brought this up was a site that isn’t necessarily “Spam” in the traditional sense. The site was a pyramid scheme, the operators of which were posting ads on my local craigslist for “social media” something or other. This isn’t by definition, Spam.
“Spamming is the abuse of electronic messaging systems to indiscriminately send unsolicited bulk messages…”
The quantity is what makes spam spam, not the uselessness of what’s being promoted.
Maybe rel=”mal” as in malicious??
I’m not the only one thinking about this idea.