Right, cause that will solve it, like it did the first time /s

The last thing we need is yet another standard; we need people to utilize the existing ones, like activitypub, webmentions, websub, micropub. And grouping is a client task.

This is not a tech problem in 2018.

What's wrong with RSS as it exists today? (I've heard people criticize the lack of comments, but that's clearly a feature.)