To make it explicit in context of:

>> This would also prevent/discourage abuse for exchanging c/p or movie torrenting.

Usenet is a system very similar to e-mail in terms of data exchange format; both are textual and originally intended to exchange plaintext. Both developed convenient forms of encoding arbitrary binary data. Today, Usenet is in fact used for piracy, and I wouldn't be surprised if c/p was present on some groups too.