Yeah, in my opinion this is by far the biggest one. The rest of list are either non-issues, or they're annoying but you can deal with them (and there's often ar

Yeah, in my opinion this is by far the biggest one. The rest of list are either non-issues, or they're annoying but you can deal with them (and there's often arguments on both sides). Han unification, on the other hand, is a disaster for Unicode. The fact that Unicode can't comfortably mix Chinese and Japanese language characters is a disaster for an encoding like Unicode that's supposed to cover the whole world.