forum rank doesn't matter anymore.  everyone will get different amount compared to what they're currently getting.  some will get more, some will get less.  the more onions you have in your airdrop wallet, the more airdrop you will get.  yes, it's the amount of "shares".  "shares" will be determined by the amount of onions you have in wallet.  to generally sum it up,  early airdrop participants will have bigger airdrop amount than late airdrop participants, since early participants will have lots more onions than late participants.  the only way late participants can get more airdrop is to buy more onions on exchange.