I'm still expecting a plunge to as low as $220, but I'm buying anyway. These prices are just too low to pass up. I just don't think there was enough volume in the bounce off of $255 for it to be a final bottom. Worst case scenario is cascading margin calls that drop us to $200. Unlikely but possible. Ironically Stamp's suspended operations has given me and I suspect others time to pad our margins. It also halted some panicked people.
A successful retest of $255 where it holds on even higher volume means a very likely end of the bear market, but it's way too soon to call it. Best case scenario is that Coinbase went down due to overwhelming buying. I doubt that's really the case but it's possible. If people really were naked short-selling, then there will be (and possibly is) a scramble to find coins in order to cover.
The least likely scenario is we go straight up from here. If that happens, a lot of short positions will be force liquidated causing a massive spike with a major retracement. If that happens, go margin short as close to the top as you can and then cover on the retracement.