This website is literally run by a venture capital corporation.

"Hacker" can have different meanings, but certainly in this case it isn't meant to reference the tech enthusuast anarcho communist subculture.

lol, the hacker in hacker news is not in reference to the blackhat, but a tinkerer

Fr. God you have to be so boring and pro-authoritarian to really be offended by buildings you don't own and will never have the power to own, being drawn on by the public. Sometimes I think graffiti is nice looking. Sometimes I think its ugly as shit. I would never begrudge someone doing it though, since I appreciate the spirit of reclaiming public spaces by the people who actually live there, who will often never be able to own spaces of their own. I am not offended for the ruling classes when their property, that they do not use, gets some paint on it. That's some crazy bootlicking behaviour.