WHY do people think that BTW is the best album of the decade?

It's messy and full of filler. Maybe it's because I was a fan of hers before it came out? I feel like a lot (not all, but a majority) of those who are big fans of the album became GaGa fans when the album came out?
Is it nostalgia or what? It's not that great of an album. I know a lot of people agreed with my point of view when it was released, as well. It's messy and quite frankly strange and confusing to listen to. Especially songs like The Queen, Judas, &etc. I mean I was only 17 when it came out, but still.
Sorry for the long post, I've had quite a bit of wine among friends 