> if one could managed to encode the trip in pictorial form somehow

It would be harder to quote them... I can copy-paste "hotaru!hoTarufiRE!!H0csnvz2" easily but saving and uploading an image would be more annoying, and you couldn't type it yourself or search for it (eg. on Share) easily.

>>6
Maybe someone could write a firefox extension that keeps a list of words you specify and highlights them wherever they occur in web pages, like how google's cache highlights your search terms.