This is indeed a very bad method.
Not all registered people are still active.
Not all of those who are active use the forums.
Not all of those who use the forums read this thread.
And not all of those who read this thread will post in it.
I am sorry but this is some kind of senseless... I am sorry, but I need to close this thread.
And to answer your question: According to what I "know" about this game we have got an activity about 9,000 to 10,000 players.
