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To be fair, after the cheating on Collatz, I'm surprised it has taken this long for a project to take a stand. I wonder if Collatz will now follow and other projects that don't want to have to go through what Jon went through putting his project back together.There's been a big discussion behind the scenes about turning BOINC credit into actual money. From a PrimeGrid admin standpoint, this is not a good thing. Even with worthless BOINC credit we've seen cheating in the past. When people are able to make money on PrimeGrid, that invites unscrupulous users to join in order to cheat. That in turn would ruin the science. Anyone devising a way to fake residues on prime-finding projects could be adding years to our search if they cause a missed prime. We don't want to discover five years from now that we can't trust our results.
The science (sieving, finding primes) is why we're here. Nothing can be allowed to interfere with that, otherwise we might as well shut down PrimeGrid right now. For this reason, we've decided not to participate in any system that monetizes our credit. While this policy will apply to any and all such organizations, we know of only one at the moment, and that's Gridcoin.
We'll be asking Gridcoin to de-whitelist PrimeGrid and we won't be sharing our daily statistics with them. Gridcoin users are welcome to crunch here, but won't earn any coin for doing so. If that means those users will be moving to other sites, we'll be sorry to see them go, but feel this is a step we must take.
This decision was not taken lightly and we're not happy about the necessity. Although Gridcoin is currently the only currency affected by this policy, this is not a reaction to anything that Gridcoin has done, or has not done. This policy is about the monetization of BOINC credit, not Gridcoin or cryptocurrencies in general.
While we welcome your comments on this, please understand that this is something we feel must be done and the decision is not going to be reversed.