lol
bitstamp talking about taking down accounts that are not verified (they are requesting ID, they are not giving you a second chance to withdraw)
You aren't thinking like a criminal. The criminals will just acquire fake IDs, get verified, buy BTC and withdraw.
I actually think this was a manipulative move done by Bitstamp to stop its descent and propel it upwards. I expect many more of such manipulations by hodlers, and inevitably some will succeed, as did Willy.
Hell, Bitstamp probably has a whole folder with detailed emergency procedures of what to do when the price gets too low for them. Remember that at equivalent volume levels in BTC, a declining price means declining profits for them.