For example if you have no stop loss you can only trade 1:1 the closer your stop loss is the more margin you can use. That way there really shouldn't be any forced liquidations.
I've wondered why/how anyone gets liquidated at all. People set a highly leveraged unprotected position and go on vacation (called sleep in the bitcoin world)?
I like your idea about having multiple accounts. You keep a certain amount of reserve USD or BTC on Mtgox and if one of your accounts looks like its about to be liquidated you deposit some capital to take it back. The rational being that if the market moves against you it will eventually come back and you can exit without loss. Of course if the market REALLY moves like over a $1 change then you might lose your backup capital as well. You can also try to short the spike then there's another spike and your forever throwing in more capital to try to stop the forced liquidation. If you can get your money in fast enough is might be 3-4 days until you can exit your position without a loss.
Then your feeling sorry for yourself thinking about how rich you would be if you went long.
This all comes back to knowing what the trend is. At the moment we're still not quite sure if BTC is going back to above 5 or its crashing back to parity.
If you're going against the trend take out small profits. If your going with it wait for the large ones. Of course I got nuts just trying to work out what the trend actually is.
Same goes for if your making a small loss and your not sure if you should exit your position or not. The simple rule of thumb is are you bettering for or against the trend?