Back & Something Weird

Had no home connection for about a week due to a storm...in the meantime, I did check the forums from work twice and noticed something really weird. I took screenshots as PDFs (attached)...these are pretty low file size limits on attachments BTW.

Anyone have any idea what's going on at the bottom of these screenshots?

Search terms, perhaps? No clue, really, just some of them seem like it could be that. Weird, anyway.

Yeah, looks a lot like SEO spam.

The question is why is it appearing on our site? I only saw it twice (I have another screenshot)...

.com or .net?

.com as I recall.