According to ChainCatcher, Sonic Labs co-founder Andre Cronje expressed his views on the controversy over the exchange's "listing fee". He said: "Binance did not charge us a listing fee, but Coinbase asked for it many times, quoting $300 million, $50 million, $30 million, and the most recent offer was $60 million."

Some Coinbase supporters responded that Andre may have contacted fake Coinbase listing workers and questioned Sonic Labs' background check.

Andre responded again: "I did not sign a confidentiality agreement, so I am very happy to provide relevant proof (the asking price came from multiple employees/departments of Coinbase, through email, Telegram and Slack for many years). Now it is certain that Coinbase can argue that this is not a listing fee, but other fees, but this will still be converted into the project's listing cost. I know Coinbase may make some legal cuts, but I am happy to publish all the evidence and let the public identify it."