I would continue to use it as I see no harm on it , I can understand why having a gun or taking drugs is illegal but having a currency isn't harmful a all . Just because they made a law about it , doesn't mean they are right. Making it illegal won't change anything for me , I can deposit them into my Neteller account and trade them for my local currency as usual and no one will know about it.
I don think this is really irrelevant because i know for sure that the goverment are also doing things that are really bad for this planet and that is becuase we are all
humans and they are doing some bad things some times.