I set up and ran this city’s Freecycle group about four years ago, and stuck with it for a couple of years until some other people came on board to take the burden of moderation off me. That was a relief - being a moderator is a bit like having to reply politely to every “user comment” you see on YouTube. Every day. Ugh.
Anyway, the thing to remember is that there’s a large amount of legroom given to the local groups - aside from a few mandatory rules (no drugs, no porn, no money, etc), you can run your group as tightly as you like, or just let it slide into near-anarchy.
An example of this is the ratio between OFFER and WANTED posts. We loosely enforced a 1:1 - you had to post an offer for any request - but even then you can’t win all the time. One guy, who’d been sending in dozens of WANTED ads for up-to-date computer gear and consumer electronics, was told that he had to offer an item first. Sure, he said, no problem - and offered a brand-new Lamborghini. Needless to say, it had been snapped up by the time anyone responded. (He got banned, by the way, and rejoined under another nym with the same modus operandi.)
As for what people do with the stuff they receive, we were pretty lax about that. After all, the guiding principle of Freecycle is to “keep stuff out of landfill”. The only rule we had was that if someone was taking stuff for resale, this had to be made plain in the ad. So it doesn’t really matter if someone’s going to use an item or keep it in their garage - it’s achieving the stated aim of the organisation.
As for pets and other live critters - that’s left to the group mods to set a rule and enforce it. By far the majority of groups don’t allow pets, but instead provide links to local animal welfare groups. In our case, we polled the users and gladly implemented a no-pets policy based on the results.
“No sob stories” is another rule we enforced. Some people would try it on, saying they needed a flat-screen TV for their terminally-ill daughter or something, but we’d ask them to resubmit without the melodramatic explanation. Again, a common rule.
And cross-posting to other groups is a definite no-no. People often didn’t realise that moderators also read the nearby groups, mainly looking for that exact thing. It violates another guiding principle: “keep it local”, as well as wasting people’s time. Sure, if they can’t shift an item in our group, then a couple of weeks later post the same in another nearby group, that’s fine, but don’t do them both at the same time.
We even had people cross-posting nationally on many groups, especially with WANTED ads. If they got a reply, they’d make up some story about being out of town, and could the item be posted to Bristol? Again, they didn’t seem to realise that we’re aware of other groups on a national level - anyone caught doing that would be mentioned on the national Freecycle forum, and individual groups’ mods would watch out for those posts coming in.