Unknown miner's BCH hash rate soars to 68.75%

The BCH hash rate of the unknown miner has skyrocketed to 68.75%, and in the past 7 days, the unknown hash rate has reached 39%. The coinbase text shows that most of this hash rate seems to belong to an unknown entity, which seems to be some sort of random random code. They are currently mining BCH with relative losses, because the profit of mining BTC at this time is 2.9% higher than BCH, but the intention of the individual or entity is unclear.