Roll-back would be a good idea three days ago. Now after all the money spent on NiceHash and all the miners efforts (now they are mining practically for nothing). Rolling all back... Hmmm... I think all these people will kill the devs

And, well. The blockchain is not dead. It just a little slow And as I see from Twitter and Reddit - most of the users accept that speed and ready to wait. Who we are to change the decision of the majority?