One of the common reason why we cannot create useful content is because of being lack of knowledge, I know to myself that I am one of them because I am still a beginner of this crypto world and I find so hard to relate myself on some topics here, so one thing that I am doing whenever I don't know the topic is that I use the google search if there is a term that is new for me or I don't understand, it helps a lot, searching before commenting on a certain topic is not that hard and it won't consume so much of you time.
Why not ask in the topic itself? You're likely to get a much better answer than Google and learn faster too. There'll probably be plenty of other people reading looking for some sort of explanation too but too shy to ask including senior members. There's plenty I don't know about.
A lot of recent members seem to have this thing about only feeling they can contribute when they've finally developed deep seated knowledge. If it was nothing but world authorities quacking at each other that would make for a massively boring forum.