People MUST get their coins off all exchanges!
Yes, that scenario is likely to happen, but why get all off exchanges ?
I have never been fond of keeping my holdings on exchanges.
Only the value of their BTC will change, not the fact that the BTC they hold on exchanges is theirs ?
Unless the exchange gets hacked, I miss to see the point of your advice.
Coins laying on exchanges can be borrowed and sold short driving the bitcoin price down. If the furures are also shorted then huge profits can be made by those with deep fiat pockets and the bitcoin market can be whipsawed and made to scare off investors.
Even if they say they don't lend your coins on the exchanges, how would you ever know ?