I don't see those as any meaningful benefit. Meanwhile only allowing active players to be online in a given time reduces the server stutters that occasionally happen. I'd rather see someone be able to pull a mob, not see it get stuck running in place and appearing in an apparent random location then someone having the ability to 'check logs' while he was away at dinner. I manage the server settings for a paid server on another game I play and even though the server is usually far under capacity, we still utilize AFK kick. The less maps and zones loaded, the better the overall performance. And when we're talking about a 22 year old game, every little bit helps.