I use Zecco... but unfortunately didn't check it out for April Fool's. I guess I was thinking too rationally, at the moment.
But if I did see a balance for millions, being a hacker, I certainly would have invested every dollar of it into some highly volatile and ridiculous stock. I wouldn't expect it to execute.
My questions are the same. How could they even think of doing such a stupid prank.. and then on top of that, allowing it to execute. Two orders of magnitude stupid.
I think the SEC should investigate, because it looked like on the morning of April 1st, Zecco had $1m+ per user on margin. There's no way they could have actually had that cash on hand if people did an "investment run." This really could have put Zecco under, and made a mess for whoever is backing them, and the FDIC.
Disclosure: I hardly know anything about finance.