Yes Rock Trading is a very old exchange that was started years ago, they claim to trade around just $1 million every 24 hours but Binance which started just a few years ago trades around $15 billion every 24 hours they are not a very useful one at that.
You asked how they still exit? Well they exist because they seem to have taken revenge on the OP because of this thread by withholding their funds and they needed to raise 1m Euro from investors to exist.
Their shareholders were completely ripped off. An exchange trading in bitcoin since 2011 that couldn't make 1 million, even with the gigantic increase in price! Even many traders made that!
And the shareholders still don't know what is going to happen to their investment. But they will.
And their partners will know too. He picked fights with more than a forum member. A list of the Rock Trading partners emails was compiled in order to inform them.
Everyone will know about the things he is capable of doing, including the Italian authorities. I posted evidence of the complains. There will more.
He is delusional if he thinks that the evidence he posted about his crimes won't be used. He is gambling not just his business, but his freedom.