* Loli porn
* Extreme neo-Nazi content; I'm talking about swastikas, hardcore racial slurs, and the like
* Targeted bullying and harassment
You want to spark a conversation about the relative merits of Republican fiscal policy, let's chat! You want to say that we should still own slaves, Jews eat babies, or gay people shouldn't exist? Go away. I don't owe you a soapbox.
Disconnecting from a server with despicable content doesn't take away that server's right to speak. It just preserves my -- and my users' -- right not to hear it.