I am not the OP (there have been a lot of baseless speculation about QS alts that are inaccurate recently), which although flattering is kinda annoying.

The OP's first post was selling an account so he has likely been here for longer then his account's age would indicate.

The OP is right that those in the DT network do tend to be selective about the feedback they leave. If you have existing positive trust, then you are more likely to receive additional positive trust, and are less likely to receive negative trust verses someone who has a neutral trust rating (or a very small amount of positive trust); this is even more pronounced when looking at those in the DT network.