The E-Commerce Directive 2000 provides a "safe harbour" for ISPs who are passively hosting any content that turns out to be in breach of copyright. 

And of course that makes sense, otherwise there is a risk the function of the internet could be severely compromised. 

However, there is a feeling now this "safe harbour" is no longer fit for purpose. A number of platforms now exist that actively provide content through the operation of sophisticated entertainment platforms rather than simply host or channel it. These include video sharing platforms, digital locker services and User Generated Content (UGC) sites which are often generating vast revenues off the back of creators' works. 

Moves are afoot to change the law and introduce anti-content filtering. A similar debate  is raging now in America as well. 

Mozilla (article below) are very much anti any such development and they are conducting a guerrilla campaign to make their feelings known. 

It's not an approach I endorse but my view on this is that the Directive we have is adequate. It simply needs to be rigorously enforced on a national level however.