Yikes that would feel terrible just the same way. Watching and seeing all those transactions but being helpless. In my case I just want to learn from my loss it's pisses me off but I know that in every bad situation there can always be something good to come of it. In this case it would be nice for me to fully understand what I did wrong to allow this to happen.
I did go back in my history and found a site: idexmarket-secure.com and that has NOW been taken down so I can't see the site to refresh my memory.
But I wonder if I was in a hurry one day just trying to see my account and put my JSON file in there along with the PW. I want so badly to believe it was something like this because then at least I have an explanation and even more importantly I don't feel violated like this could just happen again at any time. I want a clean explanation if you know what I mean. I can handle it if I did something stupid. At least then I know it wasn't just this all-powerful that that can and will happen again. The uncertainty is the worst part of it.
So I have a breadcrumb but don't know what I did on that site (above). Did I see instantly it was a wrong site and get off or did I put my information in there giving everything to the bastards!?!?! Enquiring minds want to know and that's what drives me nuts here.