I made this post and he responded with this.
I checked out this section and it looks like the people who are running signature campaigns are legendary or have some of the green trust.
You have neither? Shouldn't you be using a middleman so no one gets scammed?
If you feel uncomfortable about participating now, you can wait a few cycles. We intend to carry on this campaign for a while.

I think he's going to scam for the first 2 weeks and then just run off with free advertising. With this post he is basically avoiding to use middleman and having 0.5 BTC doesn't necessarily mean you will pay out the 0.5 BTC. I hope I am wrong here...
Also getting paid 40 cents a post seems hella nice.
That is indeed very concering, especially when they kind of dodged the question, instead of answering to it like a reputable service provider.
They answer questions about escrow with "we want to earn trust" type of answers, and the extra bonus rates for using addresses on platform do make my belief about their shady intetions even stronger. I find it weird that there has not been yet alot of activity on this thread, although it has been read for many times during this time.