As a longtime and die-hard Taylor Swift fan, it is of my opinion that this song is a tremendous step backward. Even if it is the album's lone "fun" song, Taylor should not have a track this devoid of lyrical maturity, being below most of the tunes on her debut, in that aspect. Though I would take issue with any 22-year-old using the song's spoken part, I am especially disappointed by Miss Swift, for she has done and is capable of so much beyond pandering. I suppose depth of content is not of importance against the windfall promised by writing breakup anthems.
It's just as immature as Mean or Better Than Revenge though. I definitely agree that she is pandering and knows her niche very well. I'm mostly worried that at some point her fans are going to grow up without her if she doesn't start going in a more mature direction. She definitely has some mature songs but only like one or two of those are ever singles and I think the public is starting to take notice. She's obviously still doing very well but isn't quite as ~untouchable~ as she used to be.