Re: Burned, and it was my fault.
It does not matter where you go in life, someone will always try to con you. In your case, they did not ask for payment (from what I understand), but maybe they just procrastinate. I have met two members of iboats face to face, and both were very great people. I am a trusting person, maybe too trusting, and it has gotten me burned in the past.
The first time someone approached me at the gas station giving me the ole' "I need $5 for gas, my wife's brother's girlfriend's friend is pregnant / sick," I gave them $20 because I felt so bad. Not even two hours later, at a gas station about 15 miles away (I hit many gas stations for drinks, cigs, candy, etc. throughout the day for my job), the same person rolls up, with a completely different story. I felt like I was doing a good deed at first, and when he approached me again (and didn't remember me), I exploded on him. I simply tell everyone now that I only carry debit, so no cash on hand. One guy last year tried to sell me a 1980's boom box for $5, and even graciously offered to escort me to the ATM to get the cash out. The thing I have come to find in regards to this, is the people that really need help don't ask. I have given a few people rides, but will not anymore.
I have always had good luck on ebay, never been burned, as soon as I win the auction, I pay right then and there. On CraigsList, I have never been burned either, got my boat from there, although it would have been nice (mainly my fault) if he told me up front about some of the issues, which were just lack of maintenance. I like to go to bed at night with a clear conscience, and maybe because I know I could never knowingly rip someone off, is why I don't think other people are capable.