No one likes to hear complaints about documentation, but I have a suggestion that should not require a lot of effort. It has been a a year or so since I have updated any of my flows or contributed nodes, and I have been trying to catch up on changes to NR since about version 2.0. The blog entries have excellent documentation of the new features, but some of these are missing from the User Guide. The blog is organized by version, not topic, making things hard to find. Would it be possible to insert links in the User Guide to the blog entries so that information could be found from the appropriate place without having to copy things from the blog into the guide? I can suggest a number of topics that could be handled this way.
Feel free to offer up a Pull Request. Documentation is a great way to contribute to the project.