Didn't read 95% of the thread but I can guess based on context clues that people are just complaining about losing to people who delay/speed/lag/whatever.
Here's the best piece of information I can give you: I used to be a very sub-par sparrer on PC and would constantly blame connection/delay/UDP for my losses. The second I stopped whining and started figuring out ways around it (which is really not that hard), I became good enough to join US, Enguard, Alumni etc. So I'm not gonna even knock anyone for complaining about it, because I was basically that same person in 2004... But once I stopped talking so much and started learning mechanics/techniques, I became much better.