At the moment there is a limit of 50 MH/s per worker. If someone has doubts about this - please feel free to test it. One can rent a rig (for example from betarigs) that has hashrate above 50 MH/s and try to mine with it. You will see that this worker will give you around 50 MH/s.
Miners that have total hashrate above 50 MH/s are using multiple workers and that is why you see some miner with 300 MH/s and above. We will let the pools run as is for now. We are considering implementing limits per IP. We might implement per IP limits in the next 24 hours.
You say IP in your post
Sorry about this, this was the initial post and at that time we were not 100% sure which limits will be implemented.
I've fixed that in the OP. Anyways, we are considering IP limits but I personally don't think it will make a huge change. The only difference is that you will not see some big miners in statistics.
i think you should use a smaller bag to fill.
like 0.5% instread of like 2% or larger of the total coins bag...