The trades thread makes it clear:
However items are often advertised of little value which many of us may have, unwanted, in our parts drawer. Rather than pay money for such items why not buy or trade them a set of strings, etc - e.g. I want a standard Fender BBT style bridge - everybody has at least one - low value item - "you can have it for free" - to balance the Karma scales I'd prefer to trade them a set of strings, a gig bag (I must have at least 5 I don't use) or something similar.
The forum rules exclude such transactions though.
I have loads of parts which somebody could use for a build. I want some parts for a new project - I can't reduce my parts drawer, instead I need to part with cash for parts that somebody else doesn't necessarily need/want but can't bring themselves to part with because "somebody's bound to want it at some point".
To me, it doesn't make sense to acquire more parts using my hard earned when somebody here has that item which they won't miss.
Only takes an amendment to the Recycling and Items Wanted rules and we can turn items we don't want into items we do.