Depth charts would be an interesting information to have, but I think that people give too much importance to walls and standing orders. Anyone can make an order. I can easily write a bot to put random orders up there and I won't lose a cent. Market depth by itself is not an accurate measure of the buy/sell strength.
You would, of course, have to have funds deposited in the exchange though, correct? That in itself is interesting information to have, although I wouldn't give it too much importance either.