Once upon a time, when I was a little girl, I saw something beautiful and then heard a grown up call it "tacky." I had not ever, ever heard the word "tacky" before. Well, in this context, you can see how the confusion arose. I thought the word meant beautiful.
Then, I saw an acquaintance (a girl who wasn't always very nice to me) and she had curled her hair. It looked nice, so I told her it was tacky. She cried. I got in trouble, etc. etc.
But the point is, this was an early indication of my taste. I like tackiness. I think it's beautiful.