I can buy that the global experience can be improved. It is a conversation worth having. I've tended to view global as a pool from which things were drawn out, not the place where you would want to soak. However, I do understand the bubbling issue. My default search engine has switched between Google and DDG about 5 times now. It's not a perfect analogy, but global is where I go if my feed is feeling stale. IMO global should be able to be viewed in its entirety, thus 'show-global-ignored'. However, even if in spirit global remains a fishing hole, we can change what's in the tackle box.

Just for the sake of argument, is there a better metric here? For example, "ignore users until the community shows X appreciation?" I am NOT suggesting implementing this AT ALL, but I wonder if that is the best way to determine if someone has learned the ropes, or if it's enough (or superior) to just rely on a few days time for the best filtering. Is newness what is best addressed?

Part of me wants to make the time 9 days just so we can call the setting Pease-Porridge.