it's not even funny how a user would be up, day and night just to create a reputation and it's taken away just in a moment;
It's temporary tag because of obvious reasons. It was hacked
The vulnerability of every account doesn't depend on the people behind them - it depends on the site
If you are talking of the secret question, only to those who doesn't read forum's update, especially in meta are the ones got problem with that. There's a reason why it was done, and it is easy how to recover the account due to that reason. No need to use capslock and blame the site, blame yourself for not having knowledge that could save you from experiencing this. I've been on this forum for almost 5 years and others are much more longer but never got a problem on that thing (secret question) or wasn't even hacked. It's not the site, it's the user.