You are to your own knowledge buying others peoples stolen property, that's a crime in any country.
noFirst. I didn't know these were stolen coins
Second. We still don't know if they are really stolen, I'm just speculating here, I'm just wondering who would sell hundreds of thousands of bitcoins sub 300?
Third. if it's really a theft what do you want me to do? send back the 50 btc and don't get the cash back? so that the hacker will be able to sell more bitcoins to other people?
you are trying to accuse me but I can't do anything in this situation anymore
the only thing I can is denounce the username of the guy and the irc channel to authorities, but I'm not sure because :
- do you think authorities will care? bitcoin isn't a currency in my country and I can't tell I was scammed because I did receive the coins
- the hacker was probably hiding with tor or something or using an infected computer
What a cute method to scam people that you made up here. 
I don't sell bitcoins, reread the post, someone sold me these!I carefully read your post. My guess is that you try to get people to buy from this IRC contact which is a sockpuppet of you.
I'd bet my second born son that you are under 16 years old and a massive attention whore.