1. Glitter satirizes her hyper-femininity, a key cause of her popularity.
2. Glitter has become a decidedly queer object. Deployed by queer activists upon a decidedly anti-queer figure, Bachmann's anti-queer record and discourse are exposed—and visually so, which yields maximum media impact.
3. A glittered Bachmann is a queered Bachmann. Via crafty activist sleight-of-hand, Bachmann becomes the figure of her ire for a moment—nay, permanently, given the visual evidence.
4. The glitter action shows that the Republican 2012 presidential field can't escape their anti-queer records and discourse—indeed, that the electorate will be reminded of their hateful positions and speech.
5. Glitter is fun!
Other reasons why a beglittered Bachmann is a good thing? Post them in the comments!