I tend to agree. I think both of those communities are good for communities starting out or just opening up after adjusting some settings mishaps (e.g. whoops set to NSFW, mods only, or language settings), but they don’t really fit for trying to get additional attention after that.
I made a small attempt over in General Discussion with this post encouraging people to share active communities, but nobody’s added to it with their own lists of active communities or mentioning a single or couple communities they’ve been enjoying. 🤷♀️