I think
Bounties (Altcoins) would be the right place, but threads are only on the first page for 4 minutes. In just an hour, the thread would be buried 7 pages deep. On that board, I'd be competing against spam threads with hundreds of pages filled with Facebook and Twitter links, and thousands of bump bots spamming "proof of join" and "good project".
I suggested..
https://bitcointalk.org/index.php?topic=5037161.msg46170868#msg46170868It would be nice to establish rules for bounty managers regarding: joining, proof of participation, proof of authentication..
But this solution is for real participants, but not for spambots. Here we need another protection. Managers can not be responsible for the actions of spam bots, because it can only be an attempt to compromise the campaign from the side.
Perhaps everything goes to the fact that access to posting on this board will be allowed only for users with at least 1 merit.. I dont see any other way. Word filters like "Join", "Great project",etc/ - don't stop bots.