Powerful piece? .... powerful piece my arse. and spare us your Greta renta-quote bullshit.
And If the numpty from the council thought that then why did they decide to denude the tree of all its lifegiving miracle cure leaves.
It's no more than sloppy graffiti , akin to the doodlings of a 14 year old trying to be profound.
we live in a world full of idiots. e.g. Islington council, Banksy and all the easily fooled acolytes who worship him.