Let me think about that... (Thanks for this GIF, @Draven_Eldercraft. I love it.)
Well, actually it's not a bad idea. But I have a feeling it might get hectic and a bit random... Basically I don't see a point in making a topic limited to one kind of sentence. I was actually I little annoyed when the Bookworm and Writer topics were made because of this. (No offense, Christopher or Xonos!!!) The Aetherlighter topic is okay though because it applies to everyone on the forums.
Then again, I guess the purpose of your topic is so everyone has the freedom to be creative and go off whatever they are. It would certainly save the forum from being overrun by YKYAAxW topics that a lot of people might not want to use....
Sorry this is such a long post. This is just me debating with myself... And I think I just lost my own debate.
Go for it.