In order to discourage the spread of graffiti, I’d like to propose providing some giant wipeclean dryboards in city centres. Tiny minded scribblers could scrawl whatever ‘graphics’ they liked on these.
In order to provide an incentive, each exponent would achieve a few seconds of fame as the whiteboard would capture their imagery via webcam and display it on giant screens in Times Square, Piccadilly Circus etc.
As well as BAZ LUVS SHAZZ, it might even inspire some new forms of artistic expression. Naturally there would have to be some form of ‘moderation’ in order to remove obscenities (like “Things go better with Coke.”) Thankfully there are now technological solutions capable of automating that part of the process.
Environmental protection and patronage of the arts in one virtuous package.