Usually when I get on theres only around a hundred in some zones and less than 40 in others, how many players still actively play this game? Actively as in at least once every three days.
remember that you are only seeing folks online for the faction of that toon you logged in on.
add up all the folks in every zone and on each layer and then dbl it to account for folks on the other faction and you actually get fairly decent numbers.
of course its no entirely accurate by any means but it is more so then saying there is noon playing after just looking at zones and not taking into account multiple copies of zones and an entire other faction.