I'm curious where this claim come from. Do you have any real/verificable source?
I can see that the coordinator with highest number of participants didn't have any significant increase in the number of fresh bitcoin for a long time.
Source: https://liquisabi.com/
This one for example is recent, just today, it is a Lazarus address that has entered a coinjoin round, on Arkham's website you can see their latest moves.
https://intel.arkm.com/explorer/entity/lazarus-group
bc1qjmgp7t34z63qm4l6umzqdcucd8umvmkszd8g4d
https://mempool.space/es/address/bc1qjmgp7t34z63qm4l6umzqdcucd8umvmkszd8g4d
Thank you very much. So, supposedly the hacker uses a wallet that reuse addresses and then sends 0.2btc to a round.... It is so hard to believe.
