How to contact the developers? I contacted the OP here, in the official forums I contacted this guy called "deeper" and I posted a thread but no single answer

90% of your onions must be available in your garden to receive airdrops.
Only 10% of your onions can be plucked from your garden.
this is something really2 need to check back. for my case the 4th airdrop that i didnt get it.
i got 2860 Onion.
i transfer ONLY 60 Onion from my wallet. and thats not even 10%. but still being blacklisted. so i dont know how your 10% are being calculated.
so too all HODLeeerrrrr like me. its better never to transfer out any Onion from your airdrop wallet. instead get a mining device and start mining it into a different wallet.