Wu said that he learned that on-chain detective ZachXBT criticized Circle for not caring about the ecosystem at all and just squeezing profits from it. They have never been blacklisted after DeFi vulnerabilities/hacks. It took Circle 4.5 months longer than all other major issuers to blacklist the funds of the North Korean hacker group Lazarus Group. Some comments pointed out that although Tether is often criticized for non-compliance, it has always responded quickly to freezes.