It’s just that when I’m in work I’m used to almost real-time posting, so if you post something, you get a reply more or less straight away. Conversely, here I posted something at about 10:30am, did some work, went to lunch, came back and only 2 people had posted in the main chat section in the intervening 2 hours.
I tend to find that here you will get a reply that the poster has given consideration to. Sure, you get that on SJ too, but those posts get lost in the quagmire.
Despite both being internet party forums they are both very different beasts in my eyes.