The reason for the resignation is pretty clear. The Steemit team bought by Tron was not informed about the block chain take over (all top witnesses are installed from Tron with the help of the SP of the bigger exchanges) a few hours ago. So now we know that Steemit didn't know about it or was forced not to communicate that. And it's not a good sign for the announcements planned for the next few days.
What can we do? Everybody who has STEEM on an exchange pull it back on the steem blockchain into YOUR account were you control the secret keys. I'm curious to see what will happen if everybody tries to transfer his/her STEEM. Spoiler: The exchanges have powered them all up. So they can't give them back to you! They make their business with your SP.
! Please take control again about your STEEM, login to your exchange and transfer your STEEM to your steem account.