Neither am I, Arax. But then, the others just aren't listening.
In an attempt to discredit the argument, they're trying to make it completely black and white, e.g., "if you abuse the engine, it immediately blows up, without fail, without delay." Which isn't what I'm saying at all.
What I'm saying is, if you run it full out for long periods of time, engine heat will collect and that will soon produce a lack of efficiency (loss of "full" power) and eventually it could burn up or fail.
As for those saying they've never heard of pilots being concerned about engine heat (whether at taxi or at any other time), they simply don't remember reading it, if they read it at all. I have many books that mention it, especially in theatres like the Mediterranean, the tropics and the Dutch East Indies.
And again, if heat were no consideration, why do ALL aircraft have not only engine heat gauges, but usually cylinder head temp and oil temp, and sometimes air temp gauges in the pit? And cooling gill controls? Because the engine heat has to be carefully monitored by the PILOT (not just the mechanics and ground crew) to keep the engine going, that's why. Otherwise that's a lot of gauges to cram into the pits for no apparent reason.