Source @penguinpablo
https://steemit.com/steemit/@penguinpablo/daily-steem-stats-report-friday-september-28-2018

See how there are ZERO withdrawals from exchanges. That is because all major exchanges have STEEM nodes that keep track of transfers. Those nodes are down since the STEEM blockchain issue almost two weeks ago. Until they go back on line, there will be no transfers from a major exchange like Binance for instance. This means people can buy STEEM on the exchange, but cannot transfer any of that STEEM to their account and therefore they cannot take any of that STEEM and Power Up.