Binance received $250,000 to list Blockstack’s token, which it clarified was not a listing fee, but a marketing initiative idea by Blockstack
Source: https://cointelegraph.com/news/binance-lists-blockstack-for-250-000-long-term-payment
Binance Lists Blockstack for $250,000 ‘Long-Term Payment’
October 28, 2019
CoinTelegraph