1. The whole idea that someone can turn on his computer/GPU and "
bit mine" and earn money is ridiculous.
People should earn money when they work hard for it.
Their computer is working hard, for them
2. One would think they came up with a new currency system so theft could be prevented. No,
BC gets stolen all the time.
Why couldn't they "disable" the serial numbers of the currency that was stolen?
The so called "serial number" is the strength of bitcoin, giving you full control of your money, its your responsibility to keep it safe.
3. BC is unstable. People lost a lot of money (
one tiny example; there are probably hundreds and thousands) and they did nothing wrong.
"BC" is not unstable, its market value is unstable. Bitcoin has work flawless since Jan 2009, never breached its protocol. Hundreds and thousands of people, who lost money in trading, because of their greed (as in the case of any speculative market), they thought bitcoin as instant get rich scheme. People who had blindly entrusted their bitcoin to centralized exchanges, have also lost big money, due to failure of the exchanges not bitcoin.