The lawmakers in Netherlands made a highly criticized rule, as the users of local crypto-exchanges have to proof the ownership of their BTC withdraw adresses. In the name of anti money laundering, of course. Right now, if you want to kepp trading on a dutch exchange, you have to make a screenshot of your wallet, and make a statement, whats your purpose, why you bought bitcoin.
The community react fast, and said the obviously. Screenshots are easy to altered, and people can sign to any wallet adresses with the correct cryptographic methods, so all these rules seems not just weird, but stupid too.