is it still safe to invest here?
no its not safe
What are you talking about? What the hell is it not safe? One more word against my system and I will just delete all your payments from a database and system will not send it back to you. I am serious. You will pay for your black PR and for slandering from your own pocket, if you do not know what is a honor and respect.
SNavy,
If I were you, I'd just leave him be, but keep his investments active. If you don't you're just feeding the troll and giving him reason to continue spreading fear.
Be the bigger man and ignore his comments :p