Please note I completely despise cheaters and anybody affiliated with them! If you have any VAC bans on record or if you have cheaters in your friends list then don't bother adding me. Also even if you don't have VAC bans but are super suspicious I will still report you and delete you from my list.
I wholeheartedly hope that Valve will clean this game up one day so that we can enjoy the game like I once did.
That said the CS franchise is arguably the most hacked/cheated game in PC gaming history especially since in those days hacking CS was like homework for people studying the field of online security.