Hacks4Cracks AKA whyusheep and his band of cronies that are behind this. They get paid by rival markets to DDOS/hack other markets. They admitted agora is battle hardened and they can't find any exploitable bugs but they are DDOSing the site constantly which is why the site is down so much and payments are delayed because they are fucking with it so much.
In spite of the fact that you have zero evidence that any of this is true, allow me to share a story.
There's a dry cleaner up the street that I've been using for years. They're really nice people, prices are decent and they've always done a great job. There was a fire in the shop next door that resulted in smoke damage to their space and some of the equipment. They've been closed a month now and I'm going someplace else because I need my dry cleaning done. If they ever open back up I may or may not go back. I'm not mad. In fact I feel a little sorry for them but that's just how life is sometimes. Sucks to be them. And Agora.