Someone (not me) made an interesting post on TO about color noise in low light conditions.
The first response was by an ex-UP blowhard who didn't bother to read the post. He just saw the word "color", saw a picture, and reacted with an offtopic comment. Other lazy posters followed suit. Down the page, the same blowhard told the OP he didn't know what he saw. Someone has a GOD COMPLEX!
ANYWAY...
Here is what image noise looks like. Apparently there is software that does a fair job of canceling it out.