Meta questions tagged with discussion, is an interesting tool to have .... discussions!
But, similar to real world discussions, they should lead to some conclusion/decision. Be it by going for the answer with the highest number of voting balance, or via whatever other criteria you may want to pick.
However, how can "I" (say in X months from now), find out what the ultimate decision was (or if there is one already or not) about any meta question tagged as discussion?
Somehow related: I doubt that just using "the accepted answer" is a valid answer to my question ... Think about what kind of situations that could lead to for anything "you" would want to be decided about: (1) ask a question (2) wait for any answer that "you" like best and mark that as accepted (3) if no answer fits what you like, just post your own answer and mark that as accepted ... That can't be right, right?
BTW, I'd also love to see 1 such existing meta question, where I can see what the decision was.