I wonder if we could see a spiral that effectively kills off smaller coins? > Exchanges respond to these `weak` coins by increasing their confirmation requirem

I wonder if we could see a spiral that effectively kills off smaller coins? > Exchanges respond to these `weak` coins by increasing their confirmation requirements. Some of the really small coins would probably need huge numbers of confirmations. > Lots of confirmations, which would likely damage the value of the coin. > Lower price would reduce the miner hashrate > Lower hashrate would further lower cost of 51% attack. > Exchanges increase confirmations further -REPEAT-