Will we ever see $80 again this year, page-60

and why do you think someone has to always step in when markets are crashing (ban certain things in certain times)? ... especially in a so-called free market.

Some kind of daddy to fix people's bad choices (aka buying bubbles). The reality is, most of the times, the net result of those interventions is taking money from ordinary people to save rich people assets (directly or indirectly). In short term, it may make some mum and dad investors happy though.