Totally agree with this statement, although I'm also not in the camp of anything goes. I was in a 1-star restaurant in Chicago last fall, dressed nicely but without a tie (I hate them), when we noticed a couple come in dressed like they had just come from a day of sightseeing along Michigan Ave. It just looked sloppy, like they hadn't planned to eat at this restaurant at all, but had just happened upon it, which did ruin a celebration evening for us just a little bit.

I don't care about collars, but I'm ok with Michelin restaurants enforcing rules such as no athletic shoes, no jeans with holes, no shirts with obnoxious slogans (I know, I know, who decides it's obnoxious), etc.