Cross-posting has struck me as a little strange and I think maybe this is a part of it.
Doesn’t it benefit larger communities more than smaller ones by keeping the activity in a larger one, since they can comment there rather than go to the smaller community? 🤔
I would be okay with it being opt-in on third-party clients as long as it was clearly apparent which comments were from a discussion on another community and perhaps going as far as not allowing interaction, or at least voting, without navigating to the comment on its native community.