Actually certain functionalities necessary for uBlock origin are still blocked, so the port is not possible as of yet: https://www.reddit.com/r/uBlockOrigin/comments/hdz0bo/will_u...
Never. The Safari team already (wrongly) feels that their Safari-specific "content blocker" API is adequate, and moreover, Google Chrome has announced the deprecation of the webRequest blocking API used by uBlock Origin, so it almost certainly won't be ported to Safari, and it's an open question how long uBlock Origin will even last on Chrome in the future.
Ad/tracker blockers based on Apples content blocker framework absolutely do work.
So when I said funny, I meant funny as in, “this meat smells funny”.
Please refrain from writing "this meat smells funny" comments on HN. You could go around commenting on typos too, which happen all the time, but that's not at all helpful.