I remember a long time ago on Reddit I saw a post saying (paraphrasing) "AMA: PayPal locked up $600,000 of my money because my video game is selling so quickly they think it is a scam." Turns out this was Notch selling early alpha versions of Minecraft off his personal website, which totally did look like a scam at the time.
With some of the promises Notch made back then it almost was a scam.