Cryptocurrency allows people to exchange money without dealing with financial institutions or governments. I don't own any as an investment, I use it for playing poker online. That's it.

We give too much voice to all these people suffering from hysteria. I suspect the only reason these people are given a voice is because they usually call for more laws to "fix" more things which benefits those in power.

edit: Also speaking of things we should ban, I think if we are talking about things that are actually harmful to society (not that I actually give a damn), we should start with banning twitter so that we can stop hearing these "moral" rants