First, I think its a category error to argue whether B is "Q" or not. It seems fairly certain that Q is coming from a large military operation, and B could just be another group from or phase of that operation. It doesn't need to be specifically "Q" that posted.
Second, given what CM says... either the board is comped, or the post is legit. If it was comped, I would think that the admins would deal with it pretty quickly.
THIRD, and I think this is kicker: if the board WAS comped WHY IN THE HELL would they post that particular set of VERY Q-like "non-sense". Wouldn't such a compromised post look more like the crap the SHILLS post here day-in day-out?
So, at least appears to be legit to me...
The post starts with a capital red B. Usually a Q post starts with a Q and the usual trip code.