I guess the biggest problem is, if everyone is making their machines that way, who are you going to buy from?
I bought Huebsch (aka Speed Queen) because I felt their front loaders used more water than the competition. However, not everyone is willing to pay what I did so that they can get effective cleaning action.
I agree that having to modify your machine just to get to work the way you want it is in theory, very wrong. Only because the engineers that designed it are far more knowledgable than a lot of people on this forum. (No offense!)
I personally would love to see engineers from WCI, Whirlpool, etc hanging around on this forum and see why they think the way that they do. Do they design it that way because "The beancounters told us we had to.", or do they design it that way because they think that's how it really should be done?
It's hard to imagine, but there is an incredible amount of engineering that goes into building a machine. I seriously doubt an engineer would design a machine which is ineffective unless there were other influencing factors.
I think that hacking a machine is pretty neat in principle, but in all honesty, doing anything to the machine may make it work in ways the engineer didn't intend to.
When I originally bought my Huebsch, I was tempted to raise the water level, but then I realized that even though the water level isn't as high as I thought it should be, the clothes still get very wet and they get cleaned even better than what our old top loader did.
So, IMO, if you really feel that a company should be designing a machine with higher water levels, the best people to speak with are the people who engineered the machine, not with customer service reps and not their supervisors.
Now, if only we could get a plant tour...