Well, Titus, how about this: Teen Chat evolved from the Teen Explorer forum, a place for teens to learn grammar, sentence structure, poetic formats, and to interact. Sadly, it all became about interaction than knowledge. And I have a feeling the Dark Chat notion would run the same way, only with not so many 'happy' or trivial topics. And though it might start as a discussion place for gothic poetry, in time (and a relative short time in my guess) it would devolve into a psuedo-psychiatric ward, with threads about personal depression (Feelings Forums), angst (Alley), life questions (Philosophy 101, Feelings, Q/A), psychological discourse (Philosophy 101), poetic challenges (Poetry Challenge!) with a smattering of social threads (Lounge, Family Dialogue). Basically, Dark Chat is already out there, scattered across the board. Since you are a forum hopper, you know this.
As for the why of Teen Chat...well, it's my opinion that the majority of teens are very egocentrical, spinning like so many tops to be seen by other tops. A majority of them (as well as some members in other forums) will bookmark a forum, and live in that little world, and that is OK. These are the ones who holler about posting priviledges being suspended when in truth, the forum they bookmarked has been archived.
“It is not the strongest of the species that survive, nor the most
intelligent, but the one most responsive to change.” Charles Darwin