busoni, you need to shut down Poloniex now and try to make your users whole from your own funds and debt. Do not continue trying to run an exchange. Your post mortem indicates that you do not have sufficient programming ability to handle other peoples money - no mention was even made of database transactions, which are a basic "database programming 101" topic. Your proposed fix of checking for negative balances is wrong and indicates that your code is almost certainly riddled with other exploitable bugs.

Please do the right thing and refund everyones outstanding balances, then wind up your operation.

Will this work with Tails OS? Aka Debain 6.

maybe you can contact http://www.listentobitcoin.com and ask?

The ownership is distributed, you can buy a seat on the board today, and share in the profits. (The shares are publicly trained) 

The problem as I see it is bitcoin has a scaling limit, like transactions per second, which it can support in full p2p bearer form.  It can be scaled but only at the cost of reducing its decentralization.  eg if block sizes go to 1GB, that counts me out of running a full node.  Its an issue because if you can only be a full node, with an OC3 line, most people will be pool mining without validating what they're mining, and then defacto control remains unavoidably central.  These will grow into large companies, be acquired etc.  And then become defacto policy points and they'd just as well sign contracts and stop mining.  OK so committed transactions can till prevent policy by making transactions opaque to miners, but it is not quite ideal itelf.

SSL warning on pool's site.

The barrel plug seems to be the weak link in getting sufficient power to the ports. I soldered the power lines directly to underside of hub pcb.

The coins for group buy #1 have been received and domestic shipments were mailed out today.  I was hassled about the packaging on the international orders so I'll have to figure that out and get them shipped, most likely on Monday.

Here are what I am using:

Anker Uspeed 10-port
You need to find the older model w/o the 9+1 charging port on it

d-link hub has only a 2.5A supply
I can confirm the digitus 7-port hub working with 6 erupters using a short usb extension cable for one of the middle ports.

I read on the feathercoin forum that they were under the impression that you pointed the multiport to FTC to help them counter the 51 attack.
Although it was an automatic switch, it could be a good idea.
Why not offer altcoin developers the possibility to manually point the multiport to their coin when they are 51 attacked?
Obviously they have to compensate you/us for that so we make at least what we would on another coin, but they have big pots of pre-mined coins anyway that they could use for that. It might be a win-win situation.

What app are you using for monitoring?