I don't get this reference. Can you explain it or show an example?

There was a time where a popped collar was a sign that you were a problematic person. Probably still is in a certain context. I think people are going to do some pattern matching with your clothing and people they've met/seen in the past. It's just a bit of human nature.

Maybe everyone should dress like Mr. Rogers or something.

And I mostly shop at j crew factory and tend to go for floral prints. But, it’s crazy to me that this stuff matters, even though it clearly does

Did she proudly admit her terrible judgement to her peers in hiring review and meeting, or confide in your later that she tried to sabotage you? Did she still interview?