To me it is a couple of things. Beauty is in the eye of the beholder. That is why 2* recruits become pro bowlers. Recruiting services don't have former coaches all over the place looking at a kid and tape isn't enough. I'll never forget the 2* recruit we had who decommitted, went to Ohio State and became a 4* overnight. When a Mike Farrell evaluates kids, or a website has more paid members that influence the stars, the system isn't even a system.
How many stars did Jordan Todman have? 2? Randy V1.0 thought he was one of the 5 top backs in the east. Guess what, he was!! I have never paid attention to stars, who has how many, etc. I get sucked into the 3 stars a bit, and then have to take a deep breathe and re- calibrate. I also don't pay much attention to who has offered. It's all an exercise in futility for the fan to get a read on.