No PIFs will be given to people with an Feedback score lower than 3. So, in order to participate in PIF, you need an Feedback score of at least 3. You can put up something for PIF with a lower Feedback Score though, that is allowed. UPDATE: This limit expires for PIFs older than a month. If there's no interest in the item after a month, 0-rating members can take the item. The other rules still apply.