You've got a point there. But OTOH I doubt that anyone hasnt got unused equipment lying around which for others might provide is a whole enrichment. Im talking about rucksacks, coats, billy cans, sets of buckles, carabiners etc. Anything not too valuable.
If we would do it on a swapping basis only, preferable done on the most part via PM then it might work.
Although I do understand the complications. Trust being the main one, but I've gotten more than enjoyable experiences with buying gear of people who are members here.
Reinhardt