I wonder if this website will go anywhere; it is a potentially disruptive concept. "Downtrust" in particular is a fresh angle. Amplifying a good argument when you disagree with the conclusion is a great way for the best arguments on both sides to rise to the top.
However, there is some risk of incentivizing a "softer" or "moderate" version of an argument to be considered more "trustworthy," even if one side is eminently more reasonable.
It will be important to see who can gain an audience from people who feel that their perspective is represented AND people who feel that they are being challenged with reasonable arguments.