Here's the basic idea:
Post a writing of yours. If it's too long, just post a link to it. As many of the rest of us in the club will read your writing and try to positively critique it. This means that we intend to help improve your writing, not to judge it.
We can only critique from our point of view, and points of view may differ. So if we don't like a critique of our writing, we should just shrug it off, not take it personally.
Should we agree to each post something monthly? That would give us a monthly post. We could sign up each month for it.
Any other ideas or suggestions for guidelines?