User blog comment:Obi the LEGO Fan/Let us not Give up before we have Tried/@comment-3404979-20130416002435/@comment-4845243-20130416003631

Brickipedia will have more representatives at Meta because they have more people and more pages. It's not like LMBW has any representation at the highest level of wikia.

And to answer that question, they will join the one where more of their friends are active at.