Sometimes I don't get this community.

[Alipoprocks]

If you're doing your leveling roulette, it's more exp efficient to sac pull everything and finish the dungeon, as anything past lv52~ish yields insufficient exp per mob. Then again, you shouldn't be using your leveling roulette past 52 if you're going for the most exp/hour ratio.

You should do whatever you like to do and choose to do.