And it is dangerous to keep liquidity this low. Other currencies can make the same assets and even called the same name. If they have more users and liquidity, they win. People will know they first and bitshares later. And people will say bitshares copy the innovation idea though some small group of people know it not true.
I doubt if some company just copy code of bitshares, and make it much easier to use, have more users and liquidity, they of course will let bitshares out the game. Bitshares just create innovation, others just use it. It has happened many times that winner is not who invent but who use it.