My issue is that it isn't really clear what your point is, or how you would know the difference between someone go ogling to check some facts, and it somehow coming up with the entire idea
If I consult a book I own where I read something previously, should I cite it? I didn't come up with the idea of hard solipsism on my own, indeed almost none of the ideas we might express are original, so should I cite whichever book I read it in first, every time I mention the idea?