Except on rare occasions which, by the way, can also be achieved by asking questions in your existing LS or FC, the mentor system just plain doesn't work.

It's just another way for people to get achievements. If new players are helped along the way that's a bonus, but let's be honest here, 90% of mentors didn't really get that crown with the altruistic intention of mentoring people.

They should just scrap the existing system and come up with a new one with stricter guidelines and less rewards. That way, you'll attract the people who really want to mentor new players, and perhaps the new leafs will get a better experience from it.