The Project Collaboration/ Partnership forum is intended for you to solicit other competent coders or professionals to partner with on a project or project idea of yours. The project itself can be free or commercial, it doesn't matter. However, the emphasis here is partnership, which means the nature of your request must be of a "partners" nature, not "volunteering" or "free help" with an established project/ site.
Requests for beta or bug testers on a project are also allowed.
If you run a forum or community and are looking for new mods or members, do not post a request here, as you're looking for free help on an established project, not project collaboration. Such requests are not allowed.