But Lumps: You were a little naive in believing that an employee from a manufacturer would know what he was doing, given some of the demonstrable rubbish published by manufacturers.
Sadly, yes.
If read carefully tried to avoid blaming the pilot
another victim of our collective ignorance.
It'd be unfair as it's more of a aviation community thing.
Yes, you can bugger up turbines too with dunderheaded tactics, I just don't think they are as vulnerable to ignorance. Push the levers until the correct numbers are obtained. With pistons quite often know one knows what the correct numbers are, not helped by wrong figures in the AFM.
For example take the P&W R985 with a CHT limit of 550°F. If it was an ITT max continuous limitation in a turbine, you could assume running it at say 5-10% below the max continuous ITT would be prudent practise, typically nothing required more than routine maintenance. Run the R985 at 500°F all day and, well, you probably won't be flying all day after a while.