Meanwhile, GitLab is also a business focused on turning open source community ethos into hard $$$-- part of their core product may be open source, but they're not a non-profit.

(One might even say that Gitlab is even more focused on turning open-source community ethos into hard $$$, because GitLab takes open-sourced community contributions to GitLab CE and rolls them directly into their paid, closed-source GitLab EE. Not that I'm suggesting that's necessarily a bad thing; I just want to make it clear that this isn't a Mozilla-style "take contributions from the community for the community's sake"-type thing.)