With the amount of minutia people post about their lives on Farcebook why would they care about this next level of intrusion?
Yep. Appearing in and posting online porn pics and vids of themselves is just another form of social media to some of them.
Good point, but it will get all too interesting when look-alikes are accused of crimes they didn't commit, or get in trouble with their spouses for being somewhere they weren't. I don't believe computers are nearly good enough to not make mistakes that can ruin people's lives.
The same problem has, of course, existed for centuries with identical twins. But this takes it to a whole new level of potential trouble.
The next thing we'll hear is that someone develops a technology for a mask that can be made from the uploaded facial data, so that your neighbor can masquerade as you when they do something untoward. Just wait... :-)