Such a bad, bad statement, your head is a little too far in the sand here. Yeah they talk about it, just without saying numbers. You will just get a "Your terrible." If you are lucky. You wont know why your terrible. You will most likely just get kicked with no info as to why.
Groups without parsers will not know why they are failing, maybe they will think they are the bad player or that they suck, when a parser would tell them that they are, in fact doing the numbers they should. People who aren't putting up the numbers would see that they should probably work on that, or at least know what area they arent completing their portion of the work in.
The only difference parsers bring is that people can accuratly diagnose some problems, and work towards getting better. Jerks are still going to be jerks, the only difference is that when they are being jerks, the sentance they type can now have letters and numbers in it....
I'm willing to be you would see more clears as a result of it, and more clears equals a happier community since people don't spend months of what should be relaxing game time banging their head against content walls.
But then again I've come to the conclusion many pages back that you are just arguing for the sake of it.