I think I understand what
@Prinza the Hunter and
@keritan are trying to say here, and it does make sense. More filter options and more choices when selecting trades would help open the market up to a more "free market" so to speak. I think bringing the two ideas together would be the best move.
So when creating trades you would have options for "guild only" and "non-guild only" so that you can choose if your guild members can view them or not. Having neither box checked would allow the trade to be viewable to all to see and take it they want.
With the addition of this new feature having more filters would help as well. Being a mobile player I have 2 filters to choose from, 1 is "guild only", the other being trades I can accept currently. We would need to add an option for "non-guild only" trades, so that they are still viewable for us if we want to take them because to us we feel they are worth it even if they are not labeled as "fair trade"
I'd also like to say an overhaul on the trading system for mobile would be nice. As it is now I can't distinguish between "neighborhood" trades and "friend" trades. I would need to get on the PC to figure out which ones they are, and not everyone has this option.
To summarize:
When creating a trade these options would appear:
"Fair Trade" option, which works as is putting trades automatically at 1:2, 2:1, or 1:1.
"Guild only" option, again the same, an option for only Guild members to view.
"Non-Guild members" option, for players in guilds that want to post trades that their Guild has deemed "unfair", without repercussions.
When viewing available trades, these filters would appear:
"Guild only", showing only trades marked with the "Guild only" option, or trades posted from Guild members with no option selected.
"Non-Guild only", showing trades that are either not listed by Guild members, or when the "Non-Guild members" option is selected.
"Neighborhood only", showing only from players in your current Neighborhood.
"Friends only", showing only those trades from players on your Friend List.
"Acceptable trades", showing only those that you are currently able to take.
(And yes I do know the last ones are available, though not all available on mobile. Just listing them all to be clear.)