You know all the hippy graffiti you see everywhere? That's Sine Missione.
It's mostly on cable TV boxes, phone boxes etc, isn't it.
It was more decals than graffiti when I first noticed his stuff. There's a 'Battle of Spion Kop' one by the petrol station next to Smithdown Road Asda.
When we went to Ibiza I saw some of his stuff there too. He certainly gets around.
He also seems like a right idiot going by the stuff you posted here.