yes some have bought in low to average down.
but that just adds more ammo to suggest now they averaged down they will be "at profit" when they get the $1200 again. thus more inclined to cash out.
and as i said before. it does NOT require 8million coins to cause a crash, and thus a bank run to cause exchanges to run scared and scream 'hacked'. it requires alot less coins.
put it this way. imagine there are only 300,000 coins that are 'supposedly' in an exchanges reserves.
knowing exchanges are probably spending the reserves through the back door (fractional reserving) while the customers are playing with false mysql orderlines and balances.. it only requires less than 300,000 coins to go in the wrong direction to cause a bank run and the exchange wont have those coins available to allow for all withdrawals. because there isnt 300k coins to repay all customers
they would be required to hold their hands up and reveal they embezzled the funds. meaning criminal act and prison time..(bing honest hurts them so dont expect them to be honest)
or
fake a hack and walk away leaving customers in a cluster-f**k of legal actions with some high spending lawyers in bankrupcy court over a 2-5 year period. while the exchange owner sips cocktails on a beach.