Cancelling the top 50 rule seems grossly unfair on the small players on the target worlds...Everyone on Orpheus including the GO is on the top 50...Oh joy for big accounts from say Pi.
There is just no way to do FAIR merges.
Someone's always going to feel treated unfairly. It's either that or you'll have to make so many exceptions and make sure to take each and every one's special desires into account that you'll end up not merging at all since everyone need their own server to not be treated "unfairly".
There is no such thing as a "fair" merge.
Well, then why since the merge will affect the newer servers, this rule doesn't apply ? The least you could do is to keep that simple rule,so that all the huge accounts will go to the old servers. That way, every small account will be in the newest world and won't be affected by the big accounts. And the 'big' guys will be with the 'big' guys. Simple as that.