When they post the ad @ 9 pm and we agree on the sale . he gives me his address and tells me what time to pick it up in the am, then i change my plans for the day just to be told it has sold is B.S as far as im concerned.When selling, the seller should make it clear, FCFS. I wouldn't take the word of someone I've never met, whether buying or selling. Yes, times have changed, we have no choice but to change with them. Free ads on FB Market Place or Craigslist attract all kinds of personalities including scammers.