I think there are some ways that RH would be less desirable for many people than a BigCo. When I was interested in working for them they had offices in inconvenient locations and a requirement that you (or at least, I) work in one of them -- e.g. their "Boston" office is 30 miles away in Westford, and their headquarters are in North Carolina. That's disqualifying for many people.
I imagine they pay significantly less than the other companies (e.g. Facebook) who want to hire Btrfs devs can afford to, too.
I imagine they pay significantly less than the other companies (e.g. Facebook) who want to hire Btrfs devs can afford to, too.