Absolutely. At open source orgs, the internal communication channels are way worse than the public ones. People advocate for positions all the time which would negatively impact their careers if made public.
I'm not sure what you mean by "open source orgs" or why you felt you needed to create a throwaway account to leave the comment. But, in general, "internal communications channels" on open source projects are something of an anti-pattern. Certainly, private board member (or other person-to-person) communications can be necessary but what you're describing sounds like an unhealthy atmosphere in general if there's a lot of contentious backchannel comms.
