TweetCraft, a WoW twitter client (if that name wasn't obvious), uses LibDataBroker for both a launcher and for storing tweets.
I'll post on the wiki on github with our data specification. We have a library that wraps it pretty nicely but I think it would be cool to share the raw spec if people want to work against that.
I'll try to be as nice as possible in saying, that the way you are using the library shows :
a) You are using it for a purpose it was never designed for and in a way that totally goes against the "spirit" of its logic.
b) You don't care that you are breaking the upgrade path and/or the implication of callbacks for the addons embedding LDB.
c) You really don't understand how lua works.
d) All or some of the above.
For the love of all that's good and holy, please rethink your implementation (to say the least).