Very interesting they will do a 2 week challenge where anyone can inspect the eligible addresses and submit suspicious addresses to weed out sybil farmers.
This means if lots of bots are identified your $HOP airdrop balance could increase from what you see now.
It's believed that these projects will reward some of their LP's & users retroactively (before airdrop announcement) but some will be going to users bridging into Optimism today and onwards.