Wow. The European central bank doesn't want bitcoin. Now that's some news. Buy signal!

The link doesn't load from Tor. Apparently, they neither want Internet privacy.

That absolutely tells me nothing. It's a neutral currency. By the same reasoning, the euro is rarely used legally as well, and so, it's in its last stand. It is well known that there were black markets before 2009. Laws don't tell much about the currency either. In China, North Korea, and wherever else there's communism, as far as I'm concerned, it's illegal to use Bitcoin. Not to buy drugs and guns. Just to use it. In that case, any transaction involving bitcoins is illegal.