There's nothing wrong with not knowing stuff. The problem, like you said, is people who want to talk like they know about something when they obviously don't. Why the hell would you argue with someone when all you know is what your little brain was able to put together? None of us are that smart on our own. That why research exists.
Then again, a little broscience is always good for a little laugh.
Current PRs at 242- 495, 335, 565, 1395