I like the fact that when you click on Biking it’s about bikes and Chat and it’s general chat.
Sites like BikeRadar have so many sub categories that it’s difficult to get an answer to a very specific question (it may have to be posted into Road, Workshop or something like that) on here it’s posted, answered, job done.
As others have said, don’t read topics that don’t appeal to you.
Only downside to this approach for me is how quickly topics can be 5 pages down with so much new stuff appearing all the time.