I hate virtually all tagging, graffiti, "throw-ups", whatever. The world is a demonstrably uglier place thanks to the incredibly selfish behavior of countless untalented, unoriginal and completely uncreative hacks who are aping a 50-year-old style to which they have absolutely no social or cultural connection.
Maybe ~1% of graffiti actually contributes something to the world. Even the "creative" pieces - ones which proport to say something - are actually like a mural of Marge Simpson smoking a joint, or a painting of Putin with vampire fangs. Dogshit. Keep that crap in your sketchbooks.