I'm mostly curious about what are the "legalities" and "Real world contracts" he mentions?
There are none. That's just making unverifiable excuses. You're supposed to imagine that because you don't really know what he's doing, there might be circumstances that prevent him from paying people back immediately. He's hoping you'll make up the excuses you find most plausible, that way he doesn't have to figure out an excuse everyone believes.
Also, if somebody could explain me that sentence, I'm not sure if I understand it correctly:
"I'm going to be forced to pay everyone at once"
Does this mean paying everybody as soon as possible? Or does that mean paying everybody in one shot?
It means he's asking for the maximum stall time you're willing to give him. The idea is to induce people to wait as long as they would be willing to wait for a full payback by promising that he'll pay everything at once. It's a classic tactic.
Say you owe me $1,000 and $50 is due now. I'm mad at you. You say, "I'll pay you the $50 next week". I still break your legs. But you say, "I'll pay you *all* of it next week". Maybe now I'm willing to wait another week. While they both stall for another week, the greater promise makes the stall more tolerable.
Classic stalling tactic -- to get more time when you don't plan to deliver at all, increase your promise to the maximum and thus earn the maximum stalling time anyone is willing to give you.
It seems to me pirate is now saying the market or conditions have turned against him, and now he's blaming personal attacks too. Makes me wonder how long before he declares 'I would have returned all the money long ago, but it's your fault I haven't because so many people said I'm running a ponzi scam'.
What I know about the personal attacks is that some people on IRC become REALLY aggressive when pirate shows up and completely destroy the conversation. Add to that the PM he gets each day, all the personal informations splattered on the forums and how everything he says is scrutinized like under a microscope, I'm happy to be me and not to be him at the moment.
If pirate is a fraud, I'm seriously wondering why he's still hanging around here. Close GPUMax, stop the payments and run dude! I don't know what you're waiting for, nobody is going to deposit more BTC anyway.
If he's legit though, the amount of pressure must be gigantic.
He's still making money. Why would he run when money is still rolling in? So long as people continue to believe that he might pay, his debt is still worth something, so he can keep selling it. He can produce an unlimited amount of debt, so he's not going to stop until his debt has zero value.