Are you worried about being accused of using LLMs to generate your work? As long as you don't plagiarize you have nothing to worry about.
I'm not too sure about that, people making stuff have already gotten penalized by overzealous AI detectors, most recently Kurtzgesagt.
You can't make a blanket statement like this without knowing how the watermark is implemented.
What if I unknowingly read content written by Claude in various articles and it influences my own writing style?