That would be lovely, but pelasco's point is still a good one. If PullRequest _only_ pays "rates[...]comparable to those of a senior-level engineer", without th

That would be lovely, but pelasco's point is still a good one. If PullRequest _only_ pays "rates[...]comparable to those of a senior-level engineer", without those extra perks (and, to be clear, I agree with you that in an ideal world those perks would not related to employment), then PR's actual total comp is actually effectively much less than for senior-level positions. So, we can infer that higher-skilled individuals will take the more highly-paying positions, and that the folks working at PR will be less-skilled or juniors. That's a gross over-simplification, of course, but it probably bears consideration.