Could someone use a third-party AI agent to re-curate their feeds? If it was running from the user's computer I think this would avoid any API legal issues, as otherwise ad and script blockers would have been declared illegal long ago.

> but the well-intentioned blocklists just became the chief tool for the mean girls of the site.

I've never used it, but yes this is what I expected. It would be better to have topical lists that users could manually choose to follow or block. This would avoid quite a bit of the "mean girl" selectivity. Though I suppose you'd get some weird search-engine-optimization like behavior from some of the list curators (even worse if anyone could add to the list).