Communities engage in forms of exchange. If I were using this to communicate with other members, for example interested in retro computing, it'd be nice to hav

Communities engage in forms of exchange. If I were using this to communicate with other members, for example interested in retro computing, it'd be nice to have a way of exchanging hardware with each other, with some kind of economic exchange to fit. Its not unreasonable to give people - no matter whether their intentions are commercial or otherwise - a means of safe exchange of value, without commercialising that exchange. Or, is it?