i am not saying we need to link achievements between characters and halt character progression. just saying, that there will be additional "cross account achievements" which will be like achievements you have done on all your characters together (notice that if you have a no death on one character, and hm on the other, you still wont get the skin/personality from the dlc dungeon.)
cross account achievements 55 votes
yes, but make it that you can get combine achievements through characters (hm + no death for a skin).
it could be nice, but i wont mind if they dont do it.