> LibreOffice for writing.
My personal wiki consists of thousands of documents and it's powered by Emacs' Org mode. There are numerous benefits to having a knowledge base stored as plain text files that are managed using a powerful text editor, such as the ability to refer to any document in my wiki in under two seconds. I use my wiki hundreds of times per day, and the thought of using LibreOffice or Word to manage a similarly-sized knowledge base is unpleasant.