The forum must create it's native token and distribute them to members based on their activities.
Tokens must be transferable among forum members but should not be listed on any exchange.

Although the ticker btt is already taken, we can have btf that stands for bitcointalk forum.
 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.