The effect doesn&#x27;t seem that clear. That it varies from project to project makes me believe it&#x27;s just some weak correlation.<p>They should have tracked developer retention to those projects. People might still contribute and fix issues if someone&#x27;s being a jerk, but are they going to stick around and contribute further? That&#x27;s the real question to me.<p>Someone actively contributing for a project for years is much more desirable than someone doing drive-by PRs.