You are technically right on all counts.<p>But we live in a new world.  A world of BYOD and now, in 2015, Bring-Your-Own-SaaS.  Employees put content up on company platforms, on third party platforms, on high heel platforms.<p>The problem of solving data privacy at a _competent_ level across every organization is intractable with so many &quot;just do whatever you want&quot; vibes in the air.<p>Now, that obviously doesn&#x27;t happen everywhere, but it happens everywhere until it doesn&#x27;t.  Biggest offenders are usually non-technical offices: sales using 8 hosted platforms for metrics, email, surveys, project management, job hiring, etc.  All impossible to actually control at any sane level outside of 340 UI clicks of the mouse across webby webby land.<p>tl;dr give up and go live in a cave for the next 30 years until all this gets sorted