I assume they think it's better to be thorough. A C&D isn't a lawsuit, it's a letter to persuade someone to change their behavior. It doesn't hurt to mention al

I assume they think it's better to be thorough. A C&D isn't a lawsuit, it's a letter to persuade someone to change their behavior. It doesn't hurt to mention all the reasons you think they should stop even if some are a little dubious.