Fair points, yet...

Gibrain's copyright is probably expired.

What difference does it make if he has read it or not when the copyright is valid, and as you recently wrote, you believe that anyone who has a spiritual idea they wish to write about as their own should first do a google search on it and credit another if found? https://medium.com/change-your-mind/the-unbearable-repetition-of-spiritual-writing-bbee67d53803