Basically no one is going to trade with them from beginner's and help section.If someone is lazy to search their feedbacks (untrusted feedbacks as well) before trading with someone then I will say they are deserved to be scammed.
It doesn't have to be a direct trade, it includes links they post as well
And this isn't an issue of Lazyness, not all users know where trust ratings appear automatically and where they don't. BT's rules and guidelines takes some getting used to.