Earlier quoted context omitted.
> Dress appropriately > Don’t overdress, don’t underdress. That's the kind of ultra generic advice bordering on truism. Without knowledge of exactly what that startup expects, it looks like (and the rest of the article enforces this) the only generically safe choice is jeans and sneakers. Suit is clearly defined as overdressing. I can assume flip-flops would be a case of underdressing but I think that would be a bit…
>What's underdressing when it comes to such a startup interview? Flip-flops, jorts, and a cutoff tee that says "GTL" in a neon font of your choice.
That's what I said in my comment but would anyone reasonably show up like that in an interview? A suit may or may not be overdressing but flip-flops or anything like that would definitely fall below just "underdressing". It would just be unreasonable and offensive if you ask me (and you could give any number of such examples that may be even worse).
For all intents and purposes jeans and sneakers already is the lowest reasonably acceptable way to dress for an interview, right?