Yeah I would give it a trial run of 1-2 weeks and then decide whether to continue based on the results. I expect a low hit rate generally, I just need to see if I can optimize it enough by targeting certain sections (Speculation, Trading Discussion, etc).
If you're not promoting ponzi scheme I think it's a good idea, if you need a manager I can help you with that
the rates for signatures are very competitive out there.
there are many members and few have the privilege to participate in a campaign, so if someone pays you for posting, people should be grateful for it.