While I don't believe I ever blindly bought into the hype of Warhammer Online, I am certainly a victim of foolishly believing the game was more finished than it turned out to be. I still maintain to this day that Warhammer Online put all the pieces together for a great MMO, but forgot to add the glue and nails that would keep it all together. Band aids could only hold that sinking ship together for so long (surprisingly it's still not Free 2 Play).
Warhammer's failures put GW2's features into perspective. Simple things such as allowing instant access to end-game PvP zones, PvE content in the PvP zones, and having PvP objectives outside of just killing other players would not mean as much (to me) had it not been for Warhammer Online's complete opposites. Warhammer Online allows me to smile a little bit inside every time I watch or read a new bit of information about GW2.
Another small area of pleasure is looking at GW2's World vs World (WvW), most directly comparable to Realm vs Realm from Warhammer Online. Unlike Warhammer Online; GW2 took an interesting path to get to its WvW system. Instead of distinct races/areas dividing the "teams", GW2 simply pits server against server. Each server has the exact same world, characters, and classes that the other servers have. This instantly strikes a balance and the conflict comes down to numbers and grand strategy to decide the victors. Throw in a bit of match making to re-balance equally skilled servers together and the forumla looks solid.
Matter of fact, GW2 looks solid as a whole (even in it's beta stage). And this is why I am silent. This is why I've stopped clawing to watch every new video or story that is released. I have yet to even pre-order the game. I want as much of GW2 to be fresh to me as possible. Hopefully that will limit the butt hurt this time around on another promising MMO.