No, vanity prayers are almost always individual FReepers REQUESTS for others to pray for them or their loved ones. No one here prays to the Internet to my knowledge. If you used the telephone to ask someone to keep you in their prayers, would you consider it to be praying to the telephone? Of course not.
You didn't read my post. I don't have a problem with prayer requests, it's the posted prayers that to me seem insincere. And like I said, I'm sure those who do it are sincere about it, but I would be uncomfortable doing it.