I learned my lesson on BaT about who to consider a potential bidder. On one of the cars I sold on BaT, a guy joined the chat late on the last day and started asking questions that were already covered in the write up, or were asked earlier in the discussion. I was semi patient with the guy but I had him pegged as someone wasting everybody's time (including mine). He bought the car. EVERYBODY is a potential buyer and I need to treat everyone as if they are THE buyer.