Not sure how to explain, other than to note that Minecraft had a Book and Quill writing and signing system, and that once dropped or placed in a chest, anyone can read what the author have written, and signed or just what they’ve written thus far.
This is my suggestion, to have a form of writing (Journals or Notes) that anyone, including invaders, or non-clan friends can read either signed or current writing progress.
-Side note, not sure how that’d work, I’m not a coder, and I hope this suggestion doesn’t seem like too much work if its given a thought. Thanks. 