Comment by Cthulhu_

I kind of agree; I've never looked in a file's history to see if something had been solved previously. I don't recall looking in history more than a week back to restore some deleted code either. In practice, I just rewrite code instead, also with the mindset that I'm a better programmer today than I was yesterday, and that in my head at least, writing that bit of code is trivial.

But overall, if commented code ends up in version control, it probably could have been removed.