>> "If repos are just simple little side-projects, they don't necessarily need descriptions - I know what they are, I know what they do, they aren't there for anyone but me, I don't expect them to be starred or forked."
Same like josteink said, paid repos cost money. And even if there is no description, readme or any documentation, It's still possible to find them. And they may prove useful for someone who is trying to build a similar project.
Why put it in a public repo then?