In PTC Mathcad Questions we still have only, for example, 7 labels for Algebra & Geometry, and 2 labels for Chemical Engineering. We had separate forums for both of those topics, and they certainly had more than 7 and 2 threads in them. A lot more. Hundreds. We now have 169,438 posts (it's not clear if that's actually posts, or threads, but threads would be a more useful number), which were sorted into categories. I thought the labels were going to be assigned based on the forums the threads came from. Or was that just wishful thinking on my part?
In my opinion, labels are an insufficient replacement for the categories and sub-communities we used to have with Jive. I have communicated this many times to anyone who will listen at PTC. The ball is in their court.