Does who all count capture anonymous?

[Chinetter]

I'm collecting some online counts by class, because I'm curious, and will post the results. It's not clear to me though whether players who are in-game but have turned on the /anonymous switch are being included in the counts I'm getting.

If I do "/who all ranger count", repeat for each class, the resulting numbers add up to say 900 players in-game across all classes. Then if I do "/who all count" I get that same overall total, 900.

However when I logged in the list of servers had said that the server I am doing these counts on had a population of 1,050.

"/who all anonymous count" doesn't work, gives no results.

So why do in-game counts, either done class by class or as a single "who all count", return a value that is about 150 lower than what the server list says is the server's current population? Is that because players who have gone anonymous in-game are not being counted by "/who all count"?