I'd love if there was a "meta subreddit" option here in the fediverse so I could group together every instance of say !cats and the eventual hundreds of variants on black cats, or orange cats, or illegally smol cats, into a single easy to view link. This way it would be easy to just and new groups of similar discussion into a single continuous channel. Perhaps this may be a thing once more of the apps start to take off and mature, but until then it's definitely a thing I'm missing here.