I personally thing that the topics not beinging in bold is weird. Usually you want to your topic categories be higher up in the hierarchy. I find it a bit frustrating with all the numbers in bold over the topics, causing me to look harder to find Subs, Views. etc...
(as you can see here you are just looking at the number, then the topic, vs topic and its numbers.)
(but that is my only grip so far. Still getting used to it)