I think it's because GitHub started as git hosting and people find it offensive when people use it for other things.
That being said, I'd rather read a blog on GitHub then a blog on Medium, generally speaking. I feel like it helps give a better expectation of the type of material you'll be reading.
> I think it's because GitHub started as git hosting and it's _very_ offensive when people use it for other things.
Why?
People use it for dot files, resumes, science literature, ML data sets, Python notebooks, research journals, website designs, games, assets for website designs and games, speech synthesis, speech synthesis wave files, generated visual media, film scripts, recipes, leaks, crypto, and much more.
That being said, I'd rather read a blog on GitHub then a blog on Medium, generally speaking. I feel like it helps give a better expectation of the type of material you'll be reading.