Public hack

No i have no errors with it, and im not asking how to download it or anything. i just wanna ask some things about it. Im not sure if this happens to everyone else, but sometimes , the chams doesnt work on everyone, and i have to move around for it to appear. does this happen to you too? also, what is the point of the crosshair hack? i know it puts the lil' X in the center, but what does it help. thanks for those who answer....(and if for some reason whatsoever, if you find something gay in my post and you just wanna bitch with me because just one tiny thing is wrong with it and you wanna call me choob, please just dont....and if your gonna comment on my incorrect spelling and such, please shut up, because this is a forum, and i dont care how i type.)