What does mandatory beta mean?

[Pico]

I've been puttering around Field of Bone. [You must be logged in to view images. Log in or Register.]

Are enough people logging on to make the stress test as effective as the devs
wanted? Maybe promise double xp day or something, but only if server population hits 500+ for a few hours?

And yeah I realize how sad it is to have to bribe your players (who play for free) to help with the upcoming expansion.