Any crypto project planning to run their airdrop or bounty campaign must buy these tokens first from forum. This will give forum another stream of revenue generation.
This will also prevent scam projects from running bounty and running away without paying.
You're just making some complexity over this. So, how can it be bought and could gain some revenue if in the first place this wasn't tradable in the public crypto market? And, to be honest, I can't see a solution in the scam projects running here just by the birth of the bitcointalk token, the forum can't still moderate it nor prevent it.