Obviously the goal posts will move as more games are played, but guys are looking to ballpark a "reachable" target that arrives at a playoff berth with "some" confidence. Obviously one or more teams could fall apart or get incredibly hot (FLA was, now CBJ is), and that will adjust your goals accordingly.
At the end of the day, all you can do is worry about winning your games and letting the rest take care of itself, but until the playoff question is answered, I think many will be performing the mental calculus to set a target and hope the team can reach it.