It may not necessarily be money laundering; these people are all proxies of capital. After a while, they need to introduce a big player with a lead. Initially, everything goes smoothly, but later, they end up being harvested along with the new investors.

I seriously suspect that this trading behavior of Brother Majie is a form of wash trading for money laundering. On-chain black U gets Hyperbot to go long and earns from shorting on a compliant exchange. Isn't this considered to be laundering problematic money???