So you are glad that innocent people who are less knowledgeable about internet safety than you are getting scammed?
It is a 'learning' experience for them.
It is kind of like that.
With people getting scammed in hyip/ponzi again and again, users are now more aware of the risk.
With the exchanges that went down with customers' fund, users are now less willing to keep their bitcoin on exchanges.
One of the selling points of bitcoin is the decentralized trust.
You don't have to trust anybody, not the government, not the central bank.
So I see no reason why you should trust exchanges with your bitcoins.