[lucisferre]

His opinions on not rebasing onto master and instead merging are his own. Personally I find merging far more confusing in terms of understanding history graphs and always rebase before issuing a pull request. I think you will find that generally a lot of open source projects on Github have this practice of asking people to "please rebase your changes onto master so I can merge".

One practical reason is when doing bisects.

There are certainly two schools of thought on this, but "this is confusing to me so don't do it" shouldn't be considered a valid opinion.