Other than normal wear and tear, are there any detrimental effects or added harm done to the engine by going full throttle in 1st and/or 2nd gear, then shifting up well before redline (say 4k rpm on a 7k rpm engine)?
Would it, for example, cause more PCV valve activity, increase carbon deposits, or gum up the inside of the throttle body? Does fuel injection, electronic throttles, or forced induction compound or alleviate any issues?
Would it be better (but slower :c) to not accelerate at wide open throttle, or to taper off slowly instead of instantly releasing the loud pedal?
I don't think this falls under 'driving habit' questions as I'm asking what mechanical maladies the habit may cause.