Quite obvious is if I don't like you, I can block you. What exactly it is that I don't like is arbitrary and changes with my mood. You're visiting me from a very liberal country that makes fun of me, so I'm blocking your entire country. Or you posted a very mean thing about me on some site somewhere, so now I'm blocking you.
There's a fine example of some one that blocks any link with HN as the referrer.
dylan604|4 months ago
There's a fine example of some one that blocks any link with HN as the referrer.