People needs to be smart this days, if you are greedy you will easily get caught in the trap, most people are just simply stupid thinking they are wise, attractive offers means Scam incoming
Some investors are not informed and new to this that's why they are very vulnerable with this kind of scam. They are gullible once they've been told numbers, profits and percentages without realizing the risk until they get caught empty handed.
Telegram is a place that's being used as hideout by many scammers. Don't trade or buy to a very unknown exchange. Arbitrage contains great risk but you have to understand that it wouldn't work that much anymore these days.