I'm all for free-jumping, even if it serves no tactical purpose (as in certain boss battles in WoW, overcoming environmental elements, etc.). If nothing else, it adds a little life to the game. I don't honestly care if someone else wants to jump around randomly when they're bored. Barring that, they'd be /emoting. Barring THAT, they'd be running around in circles wearing bathing suits and/or egg helmets. The list could go on. Would anyone really rather they removed all those things because there is potential for them to annoy people who won't simply look away and do their own thing? The last thing we need is a more lifeless game.