one of the reasons it's useful that git-pages is so efficient storage-wise is that i don't actually need to worry about what people are uploading. there are no cases where reasonable-seeming use of the website would generate problematic amounts of resource use, so i don't have to watch over resource use. it's Fine.
someone uploaded two copies of a site containing Every Manpage, which is half a gigabyte (each)? it only costs 36 MB to store it (total). it's Fine.
by designing the whole thing with scale and efficiency in mind, i can be providing a hyperscale-style service without having hyperscale infrastructure, and i think that's a worthy achievement
@whitequark i love a good efficiently-designed piece of software