Those already do kind of exist, I recall scripts existing which can be used to block users from lists, and inevitably those were used for reinforcing echo chamb

Those already do kind of exist, I recall scripts existing which can be used to block users from lists, and inevitably those were used for reinforcing echo chambers. On the other hand, providing users with tools to curate their timelines is much better than having the company shove some arbitrary rulings down everyone's throats. Edit: In a sense this would be one of the things I have come to really enjoy about running a Misskey instance. The content is all out there on other Mastadon, Pleroma and Misskey instances in the fediverse, both stuff I would enjoy and stuff I would find extremely offensive but that doesn't really matter because what I can see is entirely in my control.