"Bitcoin is banned in many countries"
I see lots of newer users and even some older, more experienced and knowledgeable users on this forum say it. Where did it come from? If you hand half a brain to read Bitcoin news (coindesk, cryptocoinsnews and news.bitcoin.com are my go tos), you would realise that all recent events regarding governments and Bitcoin are mostly just anti-money-laundering restrictions, not bans against cryptocurrency.
If you're referring to the Chinese scare, it's branded as anti-money-laundering most likely because the government doesn't know what stance to take on Bitcoin yet and doesn't want the investments to run off yet (still, dropped prices to 750 and that's scary).
On one hand it's a decentralized currency that they cannot control, it's heavily taxing the nation's power grid and they don't like that. But on the other hand it is bringing in the mula and encouraging economic activity amidst slowdowns.
Judging by Xi's almost bipolar behaviour for the past week no one's really sure if China will ban bitcoin or not, hence all the discussions. But then again rumors of the ban were circulating back when I first joined too (late 2013) so who knows.