I saw a certain user's video on Popular Right Now - Australia by Popular on YouTube - Australia, blocked the user, and refreshed my home page, and his video's still there.Is this just a caching issue, or does blocking a user not affect Popular right now?
Does blocking a user block them from Popular right now?
youtube
Blocking on YouTube only blocks communication between you and them, it doesn't block anything else. There are Firefox-addons/Chrome-extensions around though that let you allow to block individual channels. 