Ahh, I see. My fault for thinking it was self-explanatory. From the sidebar:

Dads for a minute for children who need a dad figure

I believe the "start" of this concept was the "Mom for a minute" at reddit. A person (of any age) may feel like they need a parent to talk to, but for whatever reason, their own parents are not a suitable choice. If you're one of those people, and you feel like talking to "a Dad," this would be a good place to find at least one.