Alternative solution: Let every bitcointalk forum member with a rank higher than "Member" provide one airdrop address, and then "airdrop" 10 BTX to that address. (We will anyway not get more than 1000 user by this forum, so the airdrop should be smaller but fairer) This way you can more or less assure a fair distribution without concentration to whales.
Edit: The criteria could also be, that only an address with atleast 1 BTX coin inside is eligible for the airdrop, thus you can be sure that the person contributed to the coin either by
- Mining
- Claiming
- Marketbuy
This is a quite interesting idea in fact, perhaps not as an alternative but as an integration to the already established airdrop. The idea is that the more people you take in, the more the coin will grow.
The best way to do it in my opinion is to make a signature bounty program which advertise this ONE TIME possibility to get free coins for bitcointalk members with some rank (I think member should already be high enough, after all you just want to avoid scammers who make new accounts just to get coins). With the signature campaign you should reach enough people. I'm not convinced about the people having to have already 1 BTX - I'd rather avoid putting problems in the way of people you'd like to seduce into this coin.