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I repeat. I am not 100% sure.
From the screenshot as well as OP's trust page, as the trust rating is in bold black text, so it is Positive Trust Rating.
For Neutral it's without bold and for Negative it's in Red Bold text.
Coming back to OP, the user "SilentMining" is not in your trusted users list nor in Default Trust List that's why your trust would not be displayed
Green to most of the users on the forum.