The noes come from people worried that a rollback implies "centralization" and people worried that businesses will shy away from adopting Nxt because of "rollback risk."
That we are even talking about the possibility of rollback PROVES NXT is garbage. Rollback risk must be eliminated. Stealing is a fair way of getting coins. Been that way since robbers were shooting at stage coaches and even before.
If NXT saves BTER, then exchanges have no incentive to deploy high security. They'll just use weak passwords and let the robbers into the servers all day. When they are hit, they'll just run to the devs and plead for help.
NXT is totally finished if a rollback is done. NXT is already in serious jeopardy just by their devs admitting there might be circumstance under which they'd be willing to 'rollback' a transaction.
Now, the next party to claim a transaction was 'unfair' will be asking the devs to do another rollback. Maybe only one worth $.5 million. Then, $100,000 transactions being contested will be rolled back. Then transactions of friends will be rolled back. Where is the line?
That ANY transaction CAN be rolled back is a serious flaw in NXT. NXT is probably very dead after this.
It must be impossible, no matter how compelling the reason, to roll back a blockchain.
Sell NXT. That dog is dead.