I find extremely unethical that Gox allows deposits knowing their withdrawal system is completely useless.
You mean, they have stopped withdrawals without a hint of when they will allow them again. Yes indeed.
Then again, why would people want to deposit anything in Gox?
They are still quoted in the Bitcoin media and bitcoin chart sites as "the" exchange, their manager is in the board of the Bitcoin Foundation, there are still some bitcoiners who recommend them, and they sell the cheapest bitcoins. Enough to trick a new investor who wants to buy some bitcoin and his not aware of their recent history.
Stopping withdrawals of bitcoin without stopping the deposit of dollars makes them a scam site in my view.