I have a CS degree from CMU, and I've only run into that sort of attitude once. The interviewer nit-picked my solution to some character array manipulation question. I didn't get an offer. The interviewer wrote some snarky comment on his Twitter the day after my interview; something about "the difference between a computer scientist and engineer". Six months later his company was bought and chopped up. He got laid off. Karma's a bitch.
Conversely, I've been hired, without a formal interview, twice merely for having gone to CMU. I guess it can work out either way.
In senior positions CS knowledge is less relevant day-to-day, because your experience overrides a lot of that theoretical stuff. However, whenever I apply to companies, the questions about basic CS usually result in me turning down interviews. It would be a poor use of my time to memorize that stuff again only to not use it beyond the interview.
Conversely, I've been hired, without a formal interview, twice merely for having gone to CMU. I guess it can work out either way.
In senior positions CS knowledge is less relevant day-to-day, because your experience overrides a lot of that theoretical stuff. However, whenever I apply to companies, the questions about basic CS usually result in me turning down interviews. It would be a poor use of my time to memorize that stuff again only to not use it beyond the interview.