I think that vandalism is generally the act of people who can't think of a more creative, interesting, or powerful way to express themselves.

Also, have any of you actually gone on the tour of the Mission? Do you know how they actually present the information? Don't laud someone's allegedly "stick it to the Man" actions until whether you know that it is, in fact, the Man who is being stuck. The Boardwalk is a "tourist trap." The Mission is a State Historic Park. I wonder which one the vandals have spent more time at?