Like it or not, if someone needs to wear a suit to feel confident that says something about them. It may just be a personality quirk of them unrelated to their skills, but it often is not. There’s no reason you need to wear a suit to feel confident.
> You get judged on your merits, not on anything else. This way of thinking is how you create an environment hostile to women and minorities.
How often does tech discriminate for “culture fit” reasons? Someone’s personality fit is often a huge point of contention, and wearing a suit is part of someone’s personality and choices.
I’m not advocating for it being an absolute state, but you certainly have to give some consideration to the fact that dressing up far more than is needed implies you don’t culturally understand. It’s as simple as that.