I'm talking about reddit back when it was still good. You follow interesting topics, celebrities can have their own topic, but you cannot follow everything an individual user does.
Following everything an individual does is kinda creepy to me, I feel like we've taken a wrong turn there with social media.
Feels like mailing lists.
I'm no ActivityPub expert but I'd want a software that does not publish individual user actions to activitystreams, only if they're done on a topic. And then you can only be notified of the action if you subscribe to the topic.
Kinda exactly like how reddit works but without the option to follow user accounts, that came much later.
So I think support needs to be integrated into the software.
Ideally there should be a personal ActivityPub instance implementation, something that doesn't require hosting all Mastodon content and can be easily customized in various ways.