I think you can still join the Gaw Miners campaign if you want; they are still accepting Hero Members and above if I'm not mistaken, as well as anyone who is active in the Mining section of the forum. For reference, a post from EvilPanda from yesterday:
Maybe he expects more than 0.1 BTC for posting 200+ times monthly ?
200 times monthly makes it around 0.0005 per post and 400 makes it 0.00025.
That is way less than what he would earn in Pay-Per-Post systems.