6. He's got you trained. He uses greed against you. So many people throw BTC at him to get that sweet deal! $20 gift cards today, $2000 gift cards tomorrow. And then he vanishes after hundreds of people buy their discounted $2000 card, and receive nothing!
As per quickerseller's evidence I think he would have to scam a lot for this long con to be worth it. I think suspicion on him is warranted but I'm not sure if he is going to scam now. If he did a massive giveaway I think a lot of people would be weary and not do it.
Can a single fact be argued? No. Where do we go from here? It's obvious, make him red trust. Then see what he does. He will leave forever with his tail between his legs because that's the scammer he is!
Even if a few people gave him negative his 'fans' would ignore it and send him money any way so I doubt it'd make a difference. Might stop some newbies sending to him though I suppose.