I think the sub-cats were only ask for in 1 or 2 topics not all of them. That is the main problem, there are just too many of them. It takes for ever to browse them now. Where I would have a look through most them before, I now don't bother. Just stick to the 1 or 2 that I enjoy. even the I am not bothering with most of the sub-sections in them. Hopefully it will be sorted soon.