Spending more time contemplating your previous assumptions is rarely a bad idea. It is only through experiences that we learn, and information can not be attained before it is consumed.

It may be also interesting to consider current claims on Intellectual Property rights of user generated content in context to the language used in those warnings. How would the current internetainment industry exist if no one was allowed to share information or content they have been exposed to?

Ideas based on a hard media economy had a shelf life in the digital age, and once a new financial model emerged on the internet, the previous way of framing ones actions when it came to the distribution of online media had to change for this new market to continue to exist. Money just shifted its wroth towards other targets.
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