The admin also seems to not care much about the rating of the forum om search engines nor take any professional action to improve it.
The forum is doing great when it comes to relevancy and keywords dominance Bitcointalk is still on top
With a Pagerank of 6/10 they are on top of keywords researches

And with over 368,000 pages indexed, I don't see their value going down

And they still hold the number one spot on the keyword Bitcoin forum

A site that existed for 10 years does not just lose its authority.