The 2nd name change is just inexcusable. It's hard to take a project seriously when a random asshole on Twitter can provoke a name change like this. Leads me to believe that identity is more important than purpose.
That's not to diminish anything he's done because frankly, it's really fucking impressive, but I think weekend project gives the impression of like 5 hours a week and I don't think that's accurate for this project.
If you go look at his code, nearly all of them are under 100 lines and I'd say close to half are under 10. So you're totally right that that number is way higher than what most other developers would have for a similar amount of code. At the same time, if we assume it takes 30 seconds to make a commit on average that's still 55 hours in a month, that is way above what most would call a weekend project.
My point wasn't really that number of commits is some perfect measure of developer productivity. It was just that if you're actually building something and not just generating commits for the hell of it, there's a minimum amount of time needed for each commit. 6600 times whatever that minimum time is is probably more than what most people would think of for a weekend project.