Yeah, new languages will probably attract their fair share of hipsters and "rock stars".

They might not be the best, but you can be sure they are able to code. They would get exposed pretty quickly in small communities, if not.

IMHO, new languages are dominated by people that are not the best, but are on their way, as they will spend an inordinate amount of time learning from the best in older languages out of necessity. The arrogant go devs of today are likely to be the jaded experts of tomorrow, as they will be forced to learn in ways that devs on an established platform rarely must.