I vote for no rollback.
Current chain on 104.128.225.215 is perfectly valid and one should stick to the immutability of the blockchain as much as possible.
We could argue the chain is "not fair", but actually same rules applied to everyone. No group had explicit benefit, it was a matter of luck, of sticking to the "right" fork.
We have seen rollbacks in the past for other coins, but usually they were due to serious matters (e.g. ETH vs ETC), and still these were not without drawbacks.
I don't see why we should choose a rollback rather than no rollback in this case.
Some people had some benefit? Sure did. But they also risked their hashing power with a possible zero result in the end.
And what is a week or two or three in mining for a coin with three years of mining history? Do we really need to take such measures?
And what about other people who were (or still are) unaware there is a problem with the chain but happen to be on the right one? It won't be fair for them either.
And possible transactions made around but right after the "rollback threshold"? Rolled back. Fair to whom?
So, rolling back is choosing "fair approach #1" versus "fair approach #2", namely "fair for miners" instead of "fair for users".
In this case, I'd choose to keep the blockchain as "immutable" as possible: no rollback, keep the chain on 104.128.225.215, the current "main peer".
This is just my opinion.
I also vote no rollback and agree with this post completely. Maybe I would change my mind if the dev would explain the purpose for the rollback, but I haven't really seen a compelling explanation. If the rollback comes after the technical fix, I assume testing this fix will involve mining and staking? Using a rollback in the name of fairness makes no sense. The people who were mining on incorrect forks won't gain any coins. And the people who were mining on the correct fork (and possibly oblivious to all of this) will have coins they rightfully mined and staked taken away. Sounds like a lose-lose to me. Furthermore, if a coin is going to succeed, communication can't live and die on bitcoin forum. This info should have been posted on the main website right away. Imagine someone getting paid for something in Magi today, and then in 2 weeks suddenly their funds disappear because we rolled back. Unless they happened to read the last 30 pages of an 800+ page thread about issues they would be clueless.
hint hint make a new coin 
