Help With Referrals

In the last two or three days, I noticed visits to my blog coming from this URL:

http://www.gulfcoastpundit.com/index.php?/forums/
viewthread/12928/

The link in there points to my homepage, not a specific post. But I am unable to access the forum by clicking on that link; they system requires me to give username and password which I don't have, and I can't be really bothered to register.

So if any Gulf Coast Pundit member would tell me what is this about, I'd be grateful. Not that I suspect anything bad is going on, mind you.