Just like I miss the Stack Overflow "show me all of the most recently changed questions" homepage, my "oldest first" sort order for answers also went away recently (and not just on Stack Overflow, but all Stack Exchanges).

Why are such useful things just going away? Sure, they might not be optimal (and the currently decided optimal view should be the default for non-logged in users and new accounts), but it's getting old having my preferences being yanked away suddenly and then having to get used to something new.