Why do so many people say "noone" when they mean "no one"?

Ohemgee cant beleave yew are soo ubsessed wid spellin, NOONE givez a dam kay?

Just teasing, that sort of thing irritates me too. I guess a lot of people are either illiterate or just lack the energy it takes to ensure that their spelling and grammar are faultless. :D

Not all people knows that and not all are always listening to their English teacher whenever they attend school. Accept the fact that not all people give importance with that kind of issue. If you know someone who fails then teach them so that in future they know whats right and they can avoid mistakes. By that way, they might thank or give you a token of appreciation xD I'm sorry if there are some mistakes in my answer.

A clear example given in "julioafg"'s supposed answer. Correctly, his nonsense answer should have been "Because only someone AS dumb and stupid AS you..." Once again, the ignorance shines. Every third grader I know would say it the way it's quoted above. Remember, julioafg, this isn't nonsense. People take you and your opinions seriously ONLY if you sound intelligent and educated, which you don't. The uneducated and ignorant get nowhere in the world, a place in which I'm sure you're comfortably esconced.

Because only someone so dumb and stupid like you can spend so much time trying to correct everybody else with stupid nonsense

because they can't pronounce the letter V