Hmm, true. I forget the scope, sometimes, coming from the client where we're lucky to see 100 people anywhere, let alone thousands. I believe they removed the toall: functionality when servers began hitting the three digit mark. I suppose masses would be crazy at that level, as well.
Being able to see a playerlist gives you a sense of the greatness of the community, though. Seeing the staff at the top of the list and your friends just below. Maybe something other than a bunch of heads on the map? I know many servers have built-in chatrooms, although you're essentially looking at something that competes with the...ah... liveliness of these forums.