500 BTC added to the bankroll?! All from one investor? And does that total show the house contribution to the bankroll as well as investors'?
At current climate and prices, that investor taking a big risk
Why is there a greater risk now? that other investors pulled out opens up new opportunities.
The price is good to exchange for fiat and
the new owners are not known, and they had slow response to support tickets
The owners paid an incredibly high amount for this site, the chances of them running off are very slim.
They were taking a huge risk (it's probably about $300,000. But only if they purchased them all recently, which is not necessarily the case). If they did, anyway, we've seen today that the price can plummet very fast (lost 10%); this, combined with the loss that SD suffered (about 40 BTC, I think) when I checked earlier, gives stark reminder. However, SD is stochastic and large losses are possible, but so equally are large wins (or the reverse, depending on your standpoint). As long as bet volume is sufficient, the edge will prevail for the house (law of large numbers).
Anyway, that volume of investment is not necessarily a large risk, i.e. if you are worth >$10 million
They aren't known, but I suppose they needn't be; it's a shady area, after all.
But where is the signature campaign when it is needed...?