Is it any diffrent than when we wre refered as the Kliq or Hulkamaniacs orJerichoholics or the chain gang or edge heads....i think you just ahte it because its in the pg era...i dont like the pg era but there not forcing you to be a part of the wwe universe or a tnamaniac..just watch the show...stop over compensating things
Don't forget about the Test-icles.
When they first started using the term, I took as more of a way to say that Raw, Smackdown, ECW, etc were all collectively the WWE Universe. That universe also encompasses the video games, movie department, wrestlers, fans, t-shirts, 7-eleven cups and so on. So it's not that you are a universe, if you attend shows, buy merch or watch on tv you are a part of their world (or universe).
Vince doesn't go small so Raw Fan Nation wasn't going to cut it, he had to go bigger and settled on Universe. This is just like how for weeks everything was the "Biggest Main Event in (insert show name) history!"
As a previous poster pointed out they have the WWE Universe website which is a social networking site like Facebook or MySpace. So it makes sense to pump it up so people go there give them more site views.
Another way to look at it is if you don't think of yourself as part of the WWE Universe, then when they mention it, they aren't talking to you. It's like when Hogan talks about his Hulkamaniacs, I don't care that it's a stupid term because I'm not one of them.