I would say limiting the braggadocio is important to "good taste" as well. I interviewed once for a dev role on the email team for a very large free software company you've heard of. The team's egos were so large I could hardly fit in the room. "Oh! I see you wrote the control system for a nuclear power plant. That's cute, I once inverted a tree data structure!" or "I see you wrote the modular exponentiator that was in half the ATM machines deployed in the US in the mid-90s. Whatever. I wrote code that changes the background color of our web page."
I did not take the job.