Correct me if wrong, but the way I see it is this:

Light hearted thread started with a possibly less than PC title.

One poster responds in a very nice way to what she perceives as a stereotype that she would rather not see perpetuated and finishes her post with a light hearted comment about clothing color. She commented in a very nice way and tried to keep things light.

Then it became a bit of a soap box that was no longer fun and may make people hesitant to post ideas.

I don't think the issue is expressing yourself here or your ideals. Just how it is done. If we want to be an inclusive group, we should be phrasing our posts in an appropriate manner and not making judgemental statements.

OK, now I have officially gotten onto the soap box. And you can all shoot me down.