kaled - 1:15 am on May 14, 2010 (gmt 0)
Reading between the lines, it sounds to me that making it possible to share copyrighted material is considered legal but taking steps to make it easy is considered illegal (and possible advertising the service too since that encourages illegal activity).
If my interpretation is correct, it seems to fit "safe harbour" thinking well. If you provide a service that is abused you are in the clear, unless you encourage that abuse. It doesn't affect me but I'm comfortable with this way of thinking.