Please guys just consider my previous recommendation and provide a bitcoin address for nicehash mining on behalf of the donation fund.
So anyone can contribute with any equipment they have, for as long as they like and it will not go to waste.
Many people are not willing to mine in a donation pool that takes days to even find blocks.

And reducing HCN mining to almost zero is no solution either. Besides the security concern, the temptation then to solo mine for super gains will be too high to resist