I'm impressed that people on an online forum with visitors from all around the world think that abbreviating the name of some far out small town makes sense.
I get NY and SF, but "Wyo" for anything other than Wyoming?
Agreed, but I can only guess that Wyo is not a usual shortcut for Wyoming. Although I made that mistake as well.
The likely explanation is Taylor Swift is famous and some people are familiar with the full name of the town she is from.
Gah, I even Googled to make sure, guess I didn't do a good job. Thanks for that.