Hah. You can lose people hundreds of millions of dollars worth of assets and because it is magic internet money and not real money, you are coding instead of in jail.
Are you advocating for debtors prisons? If someone losses money you gave them, would you rather they were in prison, (living from your taxes) or working and repaying?
Also if the bankruptcy proceeds as planned, nobody will lose real money. (Btc sale so far covers all the fiat they owe and a bit more)
I did not read the comment as advocating for debtors prisons. My understanding is that those were (are) for individuals who cannot pay a debt. Instead, I assume the parent commentor meant something more along the lines of a Bernie Madoff.
The history of mtgox is not that simple and it is somewhat difficult to say who actually was the guilty one. Maybe there was lots of incomptenece involved but I'm pretty sure that also in a situation like that it might be so difficult even think straight.
MtGox was actually developed by Jed McCaleb, and Karpeles (MagicalTux) later bought the business from Jed. At the time of the sale the exchange already had tons of issues and apparently missing 80k BTC. It was perfect timing for Jed, who later started Ripple. For Karpeles the biggest mistake was buying the business. I would consider the latter mistakes only a minor mistakes. I would guess the codebase/security/etc was quite a horrible as well, can't really blame MagicalTux for not managing to save that business.
He is currently CTO at London Trust Media (owners of Private Internet Access VPN): https://londontrustmedia.com/about/ - (under "Holdings Executive Management")