So, github is the daily workflow for many people. You're in it, your around it, your using it. It's kind of the same as out-of-sight, out-of-mind.

If I want to, I can signup for yet another site and do git-things with this codebase, but I have to change my daily process to include a one-off change to a new location. There are real costs with this mental flow change.

I don't really see the downside. The providers seem pretty similar, and I can have more than one tab open on my browser.

But thanks for the explanation; I don't feel it myself but it's good to know!