Your actions is one of the advantages of staying long in the system, because most newbies must surely fall for their trap, I believe that their act was intentional to test your fait and to confirm if actually you knew what you are doing however, reading your post is a going to to an eye opener for majority of us to become more observant enough in times like this to avoid being this manipulated by their evil act, indeed it is very essential to say attention before confirming or to continue order, honestly am one of those that gives maximum attention to this regards and reminding this to ourselves is important to enable us not to become a victim of such circumstances.
You are right that some of weird things that happen might be on purpose like tricks to scare people who have not been around as long or to see who really believes in it for long haul.
Story of OP reminds everyone how important it is to pay close attention especially when you are about to make trade or withdrawing money or going to do something with your money. Sometimes people feel like they have to act fast because they are afraid of missing out or losing money and with this they make mistake. It is really important to watch out for details before you click yes or confirm or I agree we should double check details. By the way I am also always check addresses and fee while withdrawal and trading.