I see that they started to suspend it as I cannot see the LUNA in Binance futures that's why I change my exchange site to Gate.io since until now they are offering LUNA in their futures trading, the coin really wreck a lot of lives it is around -99% it is like a rug pulled project.
As long as there is an exchange to trade it on, it would be better to sell it immediately even if it is a loss because if Binance as a large exchange has suspended LUNA, then other exchanges will also follow suit considering that so many people have been harmed by the current decline in LUNA.