Contacting people with high IQs is generally a good thing, but without additional structure it can easily become a signalling fest. Intelligence is just a capacity of the brain, not a strategy to use it well. It would be like Mensa -- a lot of smart people, most of them doing nothing important.

And -- although I am not completely sure about this -- I suspect that speaking about top 0.1% IQ is methodologically nonsense. It literally means "one in a thousand", so the proper test would require calibrating on tens of thousands or maybe hundreds of thousands of randomly selected children of the same age, repeating every few years. In my estimate, a probability that someone paid the costs of such calibration is much lower than a probability that someone used a standard IQ test mixed with a customized hocus-pocus, especially because most people don't understand the difference. (If this is true, then the whole thing was a signalling fest since the very beginning. But it still can be mined for useful contacts.)

Wonder what I'd be like now if I'd had something like this when I was that age...

At the very least, I probably would've graduated college.