I'm curious about these workflows where history matters so much, because people using them must be doing very different things than I do. I use 'git blame' every now and then, 'git show' more frequently, 'git bisect' practically never. I think I would spend at least two orders of magnitude more time squashing commits than I ever have to spend dealing with the consequences of a non-squashed history.

I did a rebase once because there was a big mess I was trying to clean up in order to make a merge work. I would be surprised if anyone has ever cared about the details.