An Insult or Salute to the U.S. Flag?

I was surprised to see the U.S. Flag flying from a tree in Brattle Square tonight. But on close examination it wasn't.

I can't decide whether this flag insults or salutes the United States of America. This blog posting is made possible by at least three of the companies whose logos are shown in the field of stars (Intel, Microsoft, and Google). While no doubt meant as a protest, I take it is as a congratulation.

Note: we turned this image on its side for greater readability.