> Suits were out in tech 30 years ago when I first interviewed. They have only gone more out of style. Fashion doesn't work the way you think it works.

Or maybe it works exactly the way they think? Suits are so out, that wearing one is a strong signal of "different thinking" in a way that being casual once was. A colleague of mind would wear a three-piece on "casual Friday", and always showed up to the nines for interviews. Never harmed him, just reinforced his "think different" bona fides.