Each thing can be both good and bad depending on the person thinking about it.
But to me, the good thing is that the perception is changing. A while back it was all about the currency used for the dark stuff only while now I can pay online for other stuff, too. Like books in my fav ebook store. And there are more and more banks considering crypto for their strategies (JPMorgan?). I know that it can lead to more regulation, but more popularity also means more stability.