[Pxtl]

Not only law enforcement. The communication systems that allow scammers to ride on their infrastructure anonymously and fail to give their users tools to push back also bear some responsibility.

The POTS and e-mail and usenet protocols are embarrassingly broken on this front.

For anybody who is building a communication system: If you are allowing anonymous messages to users is a default behavior and it is impossible or impractical to avoid, you have created a system for spam, scams, threats, and harassment.