what's the matter with you?
I ask that seriously. Obviously their goal is to build a great product, and to get people to use it.
They posted that article on the AdGrok blog because it drove a shit-ton of traffic and it received a ton of inbound links. Why wouldn't they capitalize on that?
As far as the product is concerned, it's fantastic. I've been using it in private beta for a few weeks. I would bet on these guys in a heartbeat.
Startups drive traffic and signups any way that they can, and their company name was hitting mainstream media before they even launched.