Some other posters attack other people all the time, and even more often than Serena does. Why not ban them too and make this the happiest, most fun, inoffensive (read: BORING) place in the entire internets???

She has been doing this shit since American Idol 3, which was like, four years ago. She has not stopped, and I doubt she ever will, unless something fortunate like her death happens. You just learn to deal and let it go.