How long do you think it will be before people start framing each other by posting addresses that are not theirs?
True, they are going to post an address that they control to get the coin. But if they don't really care about the airdrop (or whatever) they can just use an alt account to post the address of someone they don't like and both accounts are banned.
I guess I should take this opp to say I've never engaged in any activity here that required me to post an address for payment.
As far as I know there are programmers here and maybe they could somehow make a script that could search all users whom are active for 3 to 6 months and what bitcoin addresses are they posting in campaigns. The idea is to get all user posts that has the term "Bitcoin Address" and the 34 characters followed and if those characters (the wallet address) can be found on the forum with another user posted it. I knew it would be a hard program to make but it would be worth it for the management somehow.