> In theory, hosting code that runs any part of the internet could be construed to aid in such infringement.
These kinds of theories have been roundly thrown out in court. What really matters is whether the primary purpose of your app is copyright infringement. It's clear from any "average" person that the getpopcorntime website is promoting the ability to watch copyrighted movies for free. Contrast that with bitorrent itself, which is clearly used for tons of infringement, but it also has a clear legitimate purpose WRT large file distribution, and importantly it doesn't promote itself by shouting "watch free movies" from the rooftops.
These kinds of theories have been roundly thrown out in court. What really matters is whether the primary purpose of your app is copyright infringement. It's clear from any "average" person that the getpopcorntime website is promoting the ability to watch copyrighted movies for free. Contrast that with bitorrent itself, which is clearly used for tons of infringement, but it also has a clear legitimate purpose WRT large file distribution, and importantly it doesn't promote itself by shouting "watch free movies" from the rooftops.