Dang! Are you and @idontwannaknow0 replying to my post? Y’all got hung up on that XP aspect, so I just want to clarify since I got the feeling what I wrote was only half read.
Extra XP is what I enjoyed in D3 when slaying large groups fast, I was not saying that extra XP for slaying monsters is something id enjoy in GD.
In GD, what I would enjoy is rare materials for rewards if large enough groups of monsters were slain quickly, particularly Cthonic Seals and/or Ugdenblooms. I dont think that would happen, but I feel it would make slaying large groups of monsters efficiently a lot more relevant and rather than running through them to get to hero/nemesis monsters, players who rushed through mobs before might be more inclined to sweep and clear areas of all the trash mobs since cthonic seals and ugdenblooms have a lot of late game value.
@Res was actually the only one to give good feedback here, and I totally understand that perspective. It does feel kinda arcadey as a mechanic, and not exactly fitting in GD. Furthermore, its a mechanic from D3, which means its just not meant to be in GD. But perhaps more fitting than paragon levels, if were even talking about absorbing anything from D3.