Keeping up with a professional network can be a lot of work. The idea is that Pipe breaks this down into one person to contact each day. It's not going to be for everyone, but for people that want a little push each day reaching out to the people they've lost touch with.
For me, as a transplant from the East Coast to SF, there are high school friends, college buddies, and plenty of colleagues that I don't talk to regularly. Pipe will tell me which one person to reach out.