Has to stop. This isn't very realistic, because last time I checked, if they ran full power for long periods of time the engine would become damaged (overheat?).
What I propose is something like WEP. Lets call it, Full Throttle or FT. You can engage FT for lets say 10 minutes. After 10 minutes of FT you will be given a warning light, or warning noise, and if not turned off within another minute, you will experience engine failure or engine oil leaking. If you take the plane off of FT, then after 4 minutes, you will be able to engage FT again. When you are not in FT you will fly on Normal Power, as stated in the E6B.
I would like this to be added because first of all it would make it realistic. It just gives me this frustrated feeling when I think all of these planes are flying full throttle, with no consequences. Second of all, it would help with creating formations, because you will no longer be able to say, "slow down, I can't catch you!" And last but not least, this will create a whole new E management system which would be entertaining to master.
This is my wish.