It’s tricky, I think I remember reading a paper by Microsoft research (I’m really sorry; looking for a source) that showed a correlation between bugs and all li

It’s tricky, I think I remember reading a paper by Microsoft research (I’m really sorry; looking for a source) that showed a correlation between bugs and all lines of code including comments. So if that’s true redundant comments do hurt you. Anecdotally in dynamic languages incorrect comments related to types seem to be a constant pain for me. They’re unverified and so a second source of truth that often wrong and can’t be trusted.