Winamp Easter Egg - "Winamp F*cking Rules"!

I think it is just part of a software comment. When software are coded, comments are often left inside to tell programmers what part of the program does what. Sometimes these can be "misused" to insult, or to play pranks, or just to show off, like in this case.

Comments are not in the program. They are removed when the program compiles.

It’s NOT comments, but compiled resources. They ARE in the program, but the text is changed before the dialog is displayed. (I haven’t Winamp 3, so cannot check wether this dialog is used or another to display about text.) You will never see program comments since they are removed during compilation. And indeed you won’t see any code within resources.

If it was truly a code line comment in terms of something like this (in C programming): / this is a comment, weeeeeeee Then the compiler would of omitted it since it's a comment for the programmers to know what a piece of code is used for. The reason why the compiler would omit it would to cut back on the compiling time and to make sure it size of the program won't be any bigger, otherwise you'll have a big huge program size in no time. A resource editor is used to not look at the compiled code but to see the actual resources involved, which includes images and text (e.g., text that shows in an about box or an image that an about box is used for). Even if you do de-compile the program to get the code, you still won't see the comments involved in the original source code since the compiler threw that away when compiling the code in the first place.