You're right. I don't know if this is a bad habit on my part, but I generally avoid "All Unreads" and "All Threads" because I'm focused on one thing at a time

You're right. I don't know if this is a bad habit on my part, but I generally avoid "All Unreads" and "All Threads" because I'm focused on one thing at a time and want to leave unaddressed things unread until I can focus attention on them.