Anyone following the WSB drama this morning will see that several brokers have blocked only the 'Buy' button to prevent GME, AMC etc being purchased. People can still sell. Don't let this happen to your bitcoin. Don't buy bitcoin on Robinhood.
Robinhood just blocked several stocks from being bought. They locked the buy button when it suited them. Don’t buy Bitcoin on Robinhood. Ever.
from Bitcoin – The Currency of the Internet