I have to disagree with you there...
We have carried out tests and simply....
When the no recoil is applied the cross hair doesnt move at all!!
so a player instead of firing bursts to get accuracy gets "almost" the same accuracy when firing full blast all the time. It really is noticable. e.g using the tommy gun .... if you fire it full on for the full mag then the crosshair moves up the screen approx 1/2 to 3/4 inch with the no recoil apllied it doesnt move at all.... This HAS to affect aiming. If, as you are saying the bullets will still land in the same place then the whole aiming system would be screwed. as the crosshair should be 3/4 inch up the screen but its not.... thus the bullets would be hitting 3/4 inch up the screen but the crosshair would be at its original position.
And as for the 50% advantage... I beg to differ again. Most of the night our player didnt "cheat" and came 2 or 3rd all the time. Then when he changed he won easily by 30 points (every game)... the difference was VERY noticable.

Perhaps we have found a more advanced "no recoil" patch that the one you have tried??? (serious question)
But... i do agree with your "harsher" hacks. But then I suppose it may encourage others to defer from cheating. also it couild have the effect of stopping newer people cheating.. e.g if no "simple" cheats are available as soon as they start, then they may give up and just play the game.
As bazooka said......
"Every little bit helps" ... said the little old lady who pee'd in the sea.