I think Go's language leadership is one of the worst if not the worst I've ever seen when it comes to managing a language community/PR. Both Ian and Rob come off as dismissive of the community and sometimes outright abrasive in some of the interactions I've seen. Russ Cox seems like a good person, though.

They probably think being hardheaded "protects" the language from feature creep and bad design, but it has also significantly delayed progress (see generics) and generally made me completely turned off from participating in language development or community in any meaningful way, even though I actually like the language. I think there are ways to prevent feature creep and steer the language well without being dismissive or a jerk.