One should support the other. A knowledge base is always a good thing.
I'd say this forum opened my eyes to AG brewing, I used knowledge bases to fill in the majority of the gaps and continue to learn and form opinions based on the knowledge. ideas, opinions, experiments and debates on this forum and again back it up with reading articles on the net.
This forum would be stale if questions aren't asked and answered sometimes repeatedly.
Things like the Wiki and the recipe database just give it a more structured and solid foundation.
To tell you the truth the info in the Wiki about the optic malt is only there because you asked the question. I went and topped up my knowledge before answering and also added the info I found to the wiki. It is now there for good and will help any one else find the info.