Just read through the last 5 pages which resulted in a few additions to the list. If I'm missing anyone please PM me as that's the fastest way to get it sorted.
For those who've just joined, the idea is if around 3 regular members vouch for you then you can get the Good Trader badge on your account.
If someone who's already a Good Trader recommends you then that's enough to get it too; the whole thing is essentially run by existing Good Traders and when you become one you then become part of a community within the community that's serious about honesty and making the trading experience good for everyone involved