Re: The real problem with Exchanges/Services...it's quite simple.
is there anyone out there at this point who has used bitcoin and not been scammed / stolen from ? (aside from the folks who did the stealing of course) 
People get conned out of money every single day... no matter what the platform. What's your point?People getting scammed in real life usually can report the scammer and let authority and the court system deal with him locally.
Bitcoin enable scammers from another part of the world to conduct scam where there is no global authority can deal with them.
When you deal with an established exchange, the exchange has a good reason to continue to operate honestly because they will generate long-term trading commissions. With a person to person trader on the other hand they can more easily pull off their scam again under a new identity