Oh please don’t. I really don’t want threads from communities I’m not explicitly choosing to follow merged. Again, I’m here instead of Reddit because I want more control over what I do and do not see.
Features like this or the “discovery” feed showing recommended posts are the opposite of the experience I want.
If I didn’t explicitly seek out the community and subscribe to it, I don’t want to see it. I don’t care if there are multiple posts on the same article or topic - I’ll find the community I want to subscribe to and if I’m that interested in the topic I’ll go search for it myself.
If you feel like you must address this the “see other discussions” approach feels the least intrusive.