Don't you remember the "general market behavior" of bitcoin from November 2013?

What if this time it's *not* different?
There is no Willy this time.
Were you watching OkCoin a couple days ago?
We are talking of fake trades that make 30-80% of all trades, continues for months, totaling on 570,000 BTC purchased for non-existing dollars. Is there something of such scale happening on OkCoin? Is there are reasons to suspect that most of fiat on OkCoin customer's accounts does not really exist?