Well first it was bandwidth limitations now they are going to shutdown access to Usenet on their service. It is to early to tell if this is going to affect third party usenet services.
This is simply shocking and while many people have not a clue what usenet is, many rely on the service to participate in over 100,000 discussion groups.
Sprint and Verizon also are going to block access to some Usenet groups.
I am not yet a 100% sure if this means time warner is going to block access to third party usenet services, or if they are going to completely block access to Usenet by blocking Port 119 that the service runs on.
If the block access to Port 119 then this turns into a net neutrality issue among other things.
This stems from people using Usenet to share child porn which is horrible, but what is dangerous here is that they have decided to kill access to Usenet as a whole to stamp out what is happening in a handful of the 100,000 discussion groups. [CNET]