Earlier quoted context omitted.
At many tech companies in SV (not even startups - tech companies like Amazon, Google, etc), it would be a sartorial faux pas to wear a suit to an engineering interview.
this is not true. you have this impression because your typical engineer will wear a cheap, ill-fitting suit he bought the day before. this will make him look like a schlubby teenager trying to make a good impression among his cooler peers, instead of a manicured professional. also, the suit isn't going to make you any smarter. you have to be competent. engineers also shy away from suits because they see morons weari…
I know who Vint Cerf is. One of my friends met Vint Cerf at Google, and I hope you see the irony in citing Vint Cerf. Vint Cerf is viewed within Google as a highly eccentric (aka weird), albeit brilliant, individual. If you come in looking like Vint Cerf for a standard engineering interview, you will look very weird and out of place.
A suit, even a well-tailored, modern cut suit, will be very weird in a software interview at Google.
Don't believe me? Spend a few hours at Google's Mountain View office to get a (admittedly superficial) sense of the culture there.