Why would someone who goes to TWC, or reddit or whatever come here instead? Because "Forum Configuration!" is not the big selling point.
That's true only if you aren't a regular player

Oh I love TWC! But not because of the neatly defined boxes.
Then what draws you to TWC?

If you want to see activity in this forum - invite people to it.
It's rather impossible to invite folks to come here. What needs to be done to see more activity is make the site inviting

the only reason why now most people prefer TWC is because it already has more people.
Ummmm...