For me it's not the stars. It's the offers. Here's why. Offers represent decisions by coaches in the business who have their livelihoods on the line. They're not amateurs. It's their job. And if they fail, they're fired. So, in the aggregate, offers reflect decisions by the entire NCAA basketball world on which recruits are worth offering. The better the schools and coaches offering, the better the recruit. This is a generality, and sure there are exceptions--both ways and maybe many. But this is the best method we have to rate recruits.
I don't credit fans. I don't credit analysts on websites--other than that they report offers by professionals (I hope accurately). They're thousands of analysts and reporters, and I'm sure it's fun to be involved in reporting on the college sports business. But they aren't the professionals with their livelihoods riding on it. They're much more like us, amatuers who watch a lot.
So I look at offers. Not stars. Now, they often match. And that's because the recruiting website guys generally know what I just said. Offers are the best way to rate recruits.
Offers are also an incomplete picture. For one thing, players that commit on the earlier end of the recruiting cycle stop reporting new offers. Coaches will also be less likely to offer players who are strong and vocal commits to another program. Offers are also reliant on self-reporting by players, not announced by programs, so the accuracy is suspect in some ways, and the strength of those offers is unknown.
Harper is a good example. He committed early, before he was really on very many people's radar. After he committed, his stock rose quite a bit during his senior year at which point he would have gotten a lot more attention. But after his commitment, his offer sheet on the recruiting sites was no longer updated. Had he waited longer to commit, his offer sheet would almost surely have looked much different. So, was his offer sheet an accurate assessment? Or was it just another partial data point like rating agency scores are.
Both stars and offers are limited views into perceived recruiting success. Actual recruiting success can't be determined until later in these players' careers, once the guesswork is gone and performance becomes the metric.