You know, I always saw Slytherin's as the arrogant and purposefully ignorant ones. I can't honestly expect anyone on the boards to be it.
To be honest, I expect there'd be a lot more Hufflepuffs on these boards than people would care to see themselves as and that Gryffindor and Slytherin are in far shorter supply than people claim.
Anywya I'm definitely in Ravenclaw and I would let my sister buy the encyclopedia and read it when she's done. Which is what I did with every book besides Deathly Hallows.