I noticed very few of the projects list skills that the poster has. This is a big turnoff for any potential collaborator. One would want to know what the poster brings to the table skill-wise, too.
Then I tried submitting a project and realized why: I can’t find a field that lets me add the skills I think I already have. Is it the optional “Specific Skills Needed” field? If so, it’s unclear that it becomes the “Skills I Already Have” section once rendered.