There is no point to linking communities- if they are going to have identical content, just pick one or the other.
A better option would be for cross posts (using the Lemmy cross post feature) to exist as a single entity that is visible in multiple communities. This would allow for some differences in moderation which is the justifiable reason for multiple communities on the same topic in the first place.
There was talk about the ability to link communities in the future, so that dupes show up as merged. No idea what happened of that.
There is no point to linking communities- if they are going to have identical content, just pick one or the other.
A better option would be for cross posts (using the Lemmy cross post feature) to exist as a single entity that is visible in multiple communities. This would allow for some differences in moderation which is the justifiable reason for multiple communities on the same topic in the first place.