@pixelfed ok... playing Devil's advocate here...
How is it going to differentiate Pixelfed from InstaMeta once you've added "algorithms" ?
Because ultimately, any algorithm that chooses for the end user what he's going to see will be abused to the point where your product will become the same cesspool as Meta and that Critter. And that's not a good thing (unless the Devil ordered it).
Also "...your activity on Pixelfed and accounts you follow" - that's a recipe for an echo-chamber. Bad. Bad.
They said "chronological order will remain the default", that's a huge difference IMHO