I just searched and found _1_ thread that dealt with this particular issue. Im sorry but I did not bother to check more than the first few pages of results to my various queries.
Only it simply refered to searching as well....
Regardles of there being 1 or a million posts on the topic it is very clearly a bug. If you are unsure, I suggest you take a look at RFC 1459, and you will understand that MSG takes not a random number of arguments, but exactly 2, and that a : prepended to the last parameter will treat anything after as ONE parameter, regardles of spaces.
I fully understand that mIRC may rely on a simple way of tokenizing whatever input it receives in order to deal with commands, but it is still a bug, if this way of dealing with it results in mIRC handling a standard command like msg wrong.
If I do MSG guy mIRC is this | | bugged, I don't want mIRC to change the meaning!
Yes I know I can use colours or formatting codes, but this is known as a workarround, and should only be a temporary precaution while Khaled fixes the BUG.