The opening strings and that overblown, melodramatic feel they give the listener, the utterly basic lyrics (bar the bridge) and the way her voice sounds thin and weak, especially in the chorus, like she has a cold (she probably did have a cold while recording the song, but, as I have noticed through listening to Taylor's 4 albums many times, nothing stops her from recording a song when she feels like it. She records even when her voice is exhausted while she's on tour or when she's sick, which I wish she'd stop doing, but ok). Compare her voice on IAD, HG and TLO to her voice on ATW, SBT, Treacherous and Red, and you can tell the her voice sounds nasal and thinner on the previous 3, the way one would sound if they had a cold.
She recorded SBT when she wasn't feel that well ( i remember she said something like this) and the vocals fit to the mood of the song perfectly, so she kept the demo instead of recording again!
#CornettoPickMe is trending on Twitter. When I opened the tag, it seemed like this has to do with some contest to pick people to go see Taylor on tour. Right?
EDIT: Yes, it does. Taylor's Asian base is really dedicated, the amount of tweets is intimidating. 5th most trending topic WW atm.