I know a lot about coffee roasting and can say that your wankery meter is on point. Calling someone "likely the best coffee roaster" is like calling someone "likely the best wine maker". It's something that people reach for via wankery to get clout. It's not actually something you can asses via reasonable metrics.
He knows a lot about roasting yes, he's not anywhere near some consensus god in coffee roasting no one can touch
He knows a lot about roasting yes, he's not anywhere near some consensus god in coffee roasting no one can touch
Wankery abounds in coffee.