I thought of a few ideas that might help the Trade threads:
1. Trusted Traders thread.
There should be a Sticky Thread of trusted traders. Although it seems like a bad idea, there are certain conditions that must be met. For example:
i. Have at least a 5-star rating from 20 different members
ii. Have a set amount of posts, like 450, to recommend a person
iii. Recommendations by satisfied traders that can give a good report on why they deserve to be on the list
iv. The overall quality of the trader's past and current threads (ie. Services, types of Pokémon offered, appearance of the thread, etc.)