The original point was not to make money.
Part of it was to give customer service - some of these leads are relatives/friends of my customers; I just want to pass them the details of someone who's professional enough that they'll bother to phone the lead back.
The other reason is that even though the rest of these leads are coming from money I've spent and I'd be getting nothing back, at least someone on here would be getting the benefit rather than the customer ending up with some unknown tracky-wearing-bottom-dwelling-pikey cleaner who'll let them down.
Anyway, sounds like there isn't any demand for a separate section on the forum for lead exchange.
Vin