"Yarn storming" in the 'hood

So the latest controversy on the neighborhood list serve is whether yarn storming kills trees.  (Yarn bombing, yarn storming, guerrilla knitting, urban knitting or graffiti knitting is a type of graffiti or street art that employs colorful displays of knitted or crocheted yarn or fiber rather than paint or chalk.)  Some are asking the anonymous knitter to unwrap the afghan and hire an arborist to determine what damage, if any, has been done to the trees.  If none, re-install the art; if some, then no more guerrilla knitting in the 'hood!



Being that it was 84 degrees today, I'm guessing the trees would vote for removal of the yarn, at least for the summer months.  Another neighbor suggested leaving the artist alone and focusing on putting mulch around the trees and watering them