I mean, as a hobbyist, and for side projects, I would use my teeth.

But for the company I work for, I don't care. I would recommend my employer the fastest and easiest tool. And my employer usually don't want to spend engineering time on reinventing wheels.

If I were to launch a business in this market, the targeted customers can't be individual developers, more likely other businesses.

Like gihub, individual developers who only use their free account are part of github's marketing team.