But it is a chicken and egg, really, Call. There IS more traffic here, so people do post here because they know that if they post in one of the tiny topics - it'll likely not be seen.
And what's the point of not being replied to on a chat forum? Or wanting a range of opinions and getting one reply?
So people post where people are. So more people are there because that's where people are posting. so more people post there...
Eventually, this whole board will be AIBU 
The problem is there are too many topics. Too many sub topics. I've tried finding the specific topic that related to what I wanted to talk about.
By the time I'd analysed all the options and chosen the correct place to start my thread, I'd forgotten what it was I wanted to post about 
I've said it before, but imagine MN is a party in a hotel. You arrive at the party and you want to meet people and have a great time. You wander through the hotel, opening random doors. many of the rooms are empty, some have a couple of people in, a few have a dozen or so and then there's one. In the main hall. And there's 200 people in there, dancing and drinking and having a wild time - do you go oh, well, they're drinking vodka and I really can only drink gin, so I'm going to go find the room where they're drinking gin, even though there's only one person there.
No. Screw that. You party with the vodka drinkers, clutching your bottle of gin!
What we're talking about is not as important as talking itself.
If MN seriously pruned the topics so that there weren't umpty million of the buggers, it would be better. At the rate we're going, we'll have a topic to discuss jam and another to discuss jam with bits in.