Not only this, but there's (probably) lots of small/janitorial contributions that do not need the full power of phabricator or any sophisticated code review.The real hint is that "the number of contributions will go up". That's
a noble goal and I think it's at the heart of this proposal.
When you're going to require contributors to use a non-standard tool to get patches to your code review system, it better just work. `arc` is clearly failing us here, and I'm saying enough is enough.