They are impressive. Congrats to him.

I'm curious what he did to get to that level.

I notice that most projects he's actually billing around $50-60/hour - which is not that impressive for the US (probably much better where he lives). Maybe he stands out because his advertised rate is relatively high, and he cuts them a special deal each time?

The other thing is, why stay on UpWork after the connection is made, why not just build the client base and use UpWork as a lead source?

Maybe he starts with non-Upwork clients and then brings them "into" UpWork, getting 5 stars every time?