

IMO, yes. I think it would make people more, rather than less, inclined to comment on a cross-post made in a smaller communities, since then their comment would be more visible.
The main concern I can see being raised is potentially leading to brigading? I’m not sure if that’s much of an issue on Lemmy and I would assume being able to de-federate would mitigate that substantially.
Some more discussion on the topic: https://lemmy.blahaj.zone/post/32570282