MBFC does the opposite of elevate conversations. It's quite frankly a poison pill for conversations. People will apply their prejudices and alter their interpretations based on the 'bias check', typically before or instead of any critical thinking ~~or ant article.~~ of any article.
The last time the MBFC bot was going the user pushing it was very clearly aware of this dynamic. They also knew it was lumping everything to website source, despite authors and opinion pieces, for maximum damage.