For me I do not get to play all day long like a lot of people I have a family and I work full-time so doing a wipe and wiping out my character which I’m not even level 60 yet would be a very big disappointment and which I would probably lose interest and not even play the game.
But if there’s a way to wipe out everything except the players level because all items can’t be acquired again but leveling foursome takes too long even though some say it’s easy but when you only get it to play a few hours a day it will make a lot of people not even play the game anymore if we have to re-level 
So wipe everything except the players level