I may be mistaken, but I'd fondly imagined that the CC was for things that would consist of other than photographs; the "Chain" thread could fit perfectly well into the general swim, for example, under the Critique folder, just as do WP and the Abstract threads.
Street got its own slot, wisely, because it means that people with an interest that is only in that direction needn't bother looking at the cats and kittens, the cuddly puppìes, the obligatory travel shots, the rare tits or anything else that isn't street, if you see what I mean.
As for the pubs, I don't go. The single one that I did frequent when live music was playing lost its music licence and, with it, the band I used to snap. Bars hold no other interest because there is nothing that I find enlightening or the least bit pleasant about watching a bunch of expats drown their sorrows in pint after pint. And no, I wouldn't expect to find much photographic conversation there either. And that would be no different were I living in the UK right now; even more so, since I have never seen any violence in any of them out here - but then I don't live in Magaluf or Arenal, and bars I would go to are all Spanish, anyway, not themed Irish, Scots or anything else. I often wonder why folks who seek those out leave home in the first place.
But yeah, specialist threads don't get a heap of traffic either; few give a damn about photographc history or its greats; music, either good or otherwise, may usually just as well be being played to the deaf.
I suppose the wonder is anyone expected anything else.