From what I saw in my attempt to start a game on Baldr, there is not really a way/need to centralize character sheets. The sheet is linked to the game being played and then moved to the next game, just like if we were playing in the wild on OGMW. I think the community has its place as a hub to discuss AL and bounce rules questions off of each other. I hate to say it, but I don't see feasibility in maintaining an open tables topic. We have no way of really enforcing that anyone use it, or really conform to any of the norms we set in the community. The discussions and having topics for magic item trade and spell copying using downtime might help keep the "hub" together, though.