Fighting misinformation can be really difficult, so it’s always good to see people working on the problem! However, while a moderation tool is great, I’m not sure if it would help with more mundane misinformation (e.g., controversial figures saying outlandish statements). Personally, it seems like misinformation education would be a longer-term solution. However, I’m not an expert on this, I am just hopeful that with a better understanding of the Psychology behind misinformation, it can be fought more effectively. If you’re interested, I work with people from the Ecker Memory & Cognition Lab, which has released handbooks to tackling misinformation: https://www.emc-lab.org/.