That's actually disconnected PB or may be it's late in night in India!
Actually the description of those Forums looks crowded. Initially when we started the Forum, those part of the Forums were separate (though not exactly with the same names as I show above but they were separate) , back then there were very less posts and I was busy building rather necessary features of the web-site and merged them else they looked very empty. Now, we have some activity there, separating them looks like a good move...
On the other hand, reading this
Probably we could ask users what they are keen to learn today and what they are expecting a poll may be?
and this can be a good experiment and we can (will) try that. But I'd need more inputs on this, though in a separate topic