it seems that everyone is required to pay these new premium charges, because there is so much written about this in forums and blogs.
Actually I am not directly affected, but maybe I am affected, if the 'big traders' leave Betfair and markets liquidity would decrease.
I think we should not see only the bad things coming with this premium charges. It is possible that there is more business competition between the bet exchanges, because now more punters and traders have a look at other exchanges than Betfair.
That's all for now. All the best for trading!