one could argue that you should already have the knowledge before starting the topic and share that knowledge not to want to gain it after the fact. specially if it is a guide topic. i sometimes see such attempts that ends up being more misleading than being helpful.
I have been caught up in situations like these, were I see something online and eventually put it out as a post on this forum only for other users to debunk it. It's a harsh learning process but it allows you to know which knowledge to accept and which not to and it teaches you that not everything you see online is completely accurate.
I consider this better than holding onto the wrong notions about a particular topic.
One shouldn't make guides on topics they do not know much about though, but the fear of mistakes shouldn't hold one back from learning. I make it a habit to indicate that I am open for discussions so more experienced members can either approve or correct the ideas I put out.