These days with the company's people to eat and chat, hear them talk to the Internet disclaimer. Listen carefully for a moment, very useful.
For example, some platform properties (such as Youku), to provide users with the upload, play video services, Youku has a disclaimer itself, how this statement is how it works.
For example, content quotient a owns the copyright of B video.
At this time, there is User C to the B video did not pass A's permission to the Youku.
Because of this disclaimer, Youku does not have to bear any responsibility.
If a objection, you need to send a formatted document (copyright notice) to Youku. Say to cool off B video, all consequences by a responsible. At this point the cool in the specified time to revoke B, you do not need to be responsible.
If c raises objections, it is a dispute between user C and content quotient A, or it has nothing to do with Youku.
Anyway Youku (disclaimer) do not need to be responsible, because of this provision, the content of the Internet to disseminate the "free", "popular", is an important form of promoting the development of the Internet.