I have an interesting but unrelated story about files going away in Github.

Remember when Windows Research source code that was used for teaching in university, and was leaked in the late-aughts, way before Microsoft purchased Github?

I had this code in one private repository called "ms" for more than a decade. It didn't have Git history or anything, it was just some random files, plus the leaked sources.

I totally forgot about it until a last year ago, when I checked, and the code is entirely gone.

I'm now more careful about what I put in private repos. In fact I don't have anything private there anymore...