Why Mega will change the status quo
filosottile.github.com
filosottile.github.com
Sometimes I wonder why services like Gmail don't bake encryption into their product and I can only assume that is because of the need to power contextual ads and to service government inquiries.
Perhaps Mega will change the standard and make more people think "why isn't my email sent and stored in an encrypted fashion out-of-box?"
Spam Filtering is a big one though.
Most people don't realize that 98% of emails are spam. The spam that finds its way to your spam folder is only a tiny tiny fraction of the spam that was sent to you. The only reason that spam got through is because of the off chance that it might not be spam.
However, I think that none of these issues apply to the piracy fighting threat model.