I see it very often, especially with Linux, Libre Culture and Open Source, that one and the same is discussed in 2 or more threads. In one a consent was found, in another not, and in the third are only posted links to one of the other discussions. So I asked myself, what if a cross post would only link to the original instead of creating an own entry?
There should probably be some ability to crosspost without being a symlink, maybe as a secondary option, but this is a great idea