That's why I do my own form of investigation. To determine if they are legit or not, I usually visit the newbie's profile page to see how much information they have filled in there. Then I send them a "Welcome to DGN" message and wait for a response. Then I friend them because that will trigger another email on their end. The amount of interaction and information provided determines how I proceed regarding making them a "Welcome" page or if I just inform Troy to have them removed.
Nowadays, I've noticed that everything is geared for advertisements. When cable tv was first introduced, it was so you could watch movies and certain sponsored shows uninterrupted. Now it's set up where you can fast forward through the shows, but you MUST watch the commercials.