[BrianG]

lol, you are understandably frustrated.

I would guess he is saying 30k rpm for the people who he knows are going to push it no matter what he says. A disclaimer or a "safety net" I guess. But, if he is talking to someone who actually sounds like they know what they are talking about, he can specify a rating closer to real-world values. We all pretty much know the 35000 rpm "golden rule" so anything around that value is ok.

Or, he could be taking the application into consideration. If someone is buying a motor specifically for speed runs, the motor will be running in the upper rpms much more often. But for track use, the motor will not be running at max speed nearly as long, so those high speed inefficiencies mean less and you can run higher rpms as a result.

It sounds like someone needs to sit back, relax, and have a cold beverage. :)