In Jan, I received a C&D email about abusing Facebook and Instagram from the Perkins Coie law firm. Unfortunately, I used my real information to register the domain because I didn't think I would be under their radar some days. In the email, they knew my information and asked me to shut down the site, answer them about the revenue, etc.
I decided to shut down the site and told them I did it. Then, they ask me a complete response to their questions in the following emails. That time, I chose to ignore them.
But in the last email, they listed some websites that do not belong to me and asked me to shut them down. Should I reply that I'm not the owner or keep ignoring them?