Just look at the statistic on ravenminer. Enemy 1.05 has 27GH so 270MH on this pool alone.
Enemy 1.03 has 115GH
Technically enemy 1.05 is more performing than 1.03 so everyone will migrate one day or another.
If you adapt those figures to the global hashrate, one could estimate that enemy miner can get as much as 30% of the total hashrate which is 1800GH so this is 6GH of dev fee which at the current rate would be a revenue of 26000$/month, $322000/year
1% dev fee is gigantic.
When enemy uploaded his first miner he raised hashrate by 10-15%. Absolutely free. How many extra coins have people earned with it? $10,000 a day? $20,000 a day? And how much is it going on now? 1% dev fee is gigantic? People are so envy. Why count other people's money? Earn your own