this is one of many stories originating from germany https://www.reddit.com/r/Bitcoin/comments/68nh7q/knock_knock_police_you_have_bitcoins/
german government does actively track bitcoin's block chain.
2 possible (imo) BTC scenarios will be playing out, and neither is good.
le pen wins french elections:
a) euro crashes
b) remaining EU nations start to panic; BTC hodlers, and their networks will be targeted as "russian agents", or "terrorist financiers".
BTC continues it's rise into the $3-5,000 range:
bitcoin at this price range will make BTC hodlers targets for robbery, and possible blackmail via rouge agents/agents of the state.. could go on, but believe you see where I'm going with this... last few years bitcoiners have let their guard down in a false feeling of security.. times will change, and people that were sloppy with coin control will be targeted.