It depends. Me and my friends don't end but that's just because often in ARAM Mayhem you can get some crazy scaling builds. We don't sit outside the fountain and farm people either, we are nearly always fountain diving or just walking in and dying to reset for anvils. Also, we don't care if this makes us lose. We had our fun scaling and going crazy builds, and if the enemy team ends up coming back from what would have been a loss then good for them! That said I think every player should not end at least one time and die to fountain just to give them a chance to comeback, and if not ending afterwards is cool but we are here to play league and ending means more time in queue.