polish youtuber paid by central bank to post negative about bitcoin
A Polish Youtuber, with around one million subscribers, was paid circa $30,000 by the Central Bank of Poland, in collaboration with the Polish Financial Supervision Authority, to portray cryptocurrencies in a negative light without disclosing the payment in the video.
https://www.trustnodes.com/2018/02/17/polands-central-bank-secretly-paid-youtubers-slander-cryptos