Diablo 4 just got two new hotfixes, and one of them patched out an infinite XP exploit.
Fly Hosts, (as well as Fly Hosts resurrected from Trembling Masses) will no longer be a source of infinite XP, according to Blizzard, so that's at least one method of farming XP gone from Diablo 4. It's not really known how many, if any other, infinite XP exploits there are out there, but now there's one less, and that'll hurt farmers.
