This delay also means testnet participants will have more time to complete KYC;

Iron Fish: Privacy and Accessibility in Cryptocurrency

These two statements seem to be in conflict with one another.

Mining hasn't started yet, don't take the news seriously yet

We are thrilled to announce our open-source GPU mining competition!
During this competition, eligible users are invited to create open-source GPU miners on the Iron Fish network. The more miners there are, the more secure and decentralized Iron Fish becomes.
https://www.nicehash.com/blog/post/introducing-mine-the-unminable-and-change-the-minimum-payout-threshold?lang=en