Within the world of audio, both on the consumer and pro sides, there has been no greater point of contention than the increasing levels of compression used to produce music.
The phenomenon grew to the point where it was given the name “loudness wars,” because it reached a level where one engineer would try to outdo another engineer by making his recording louder. The problem is that it employing compression destroyed the dynamic range of many of today’s recordings.
I hardly ever use that stuff when work on recordings. Also not a huge fan of pitch correction either. I mean, I do use the tools available, but I’d rather use them to ever so slightly enhance a recording, not totally change a recording.