You been pro-level in any FPS games? Any games? Apparently not... the articles are just saying that moving your windows sensitivity slider is evil. What about it?
No man, you obviously didn't read the 2nd article at all. It explains the nature of your software mouse acceleration vs mouse dpi settings in detail. Anyways, obviously you can't be arsed to read anything more than a few lines so I give up. Short answer is you're just wrong in your assertion about DPI being:
I love "dpi". Total marketing tool, nothing else. As long as your mouse has 400dpi you're good. After that it's just a higher sensitivity, and y'know, you can adjust that anyhow..
It's genius though. They can re-sell the same mouse over and over, only adding "5k DPI!!!11+1+1" every time and a new package.
Since it's actually increased precision, smoothness as well unlike traditional software acceleration which sacrifices both of those aspects in order to move "faster".
*As for Pro-level if you mean competed for monetary rewards in sanctioned tournaments then yes actually, in my teenage years I spent quite a bit of time going to a few different tournaments up here at the various arena's/domes we have. This was long before any CPL or CGA etc though. It was also for games such as q2:ra, TF (the original), Tribes, UT, etc. Won some cash at a few along with puter parts. It's how I got my stacked voodoo3 cards back in the day. Nowadays? Fuck no, I'm old as shit in gamer terms and my reaction/reflexes have already gone past their prime compared to the teenagers of today. Couldn't compete at that speed even if I wanted to nowadays.*