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Why isn’t AntPool mining on their own blocks?
The question of why AntPool, who have been around since 2015 and have mined 10% of all Bitcoin blocks in existence, are not switching to their own blocks during forks remains open. Aren’t forks frequent enough to bother? Probably, calling preciousblock along with the submitblock RPC when submitting a newly found block to their nodes would do the trick. Maybe some part of their pool software is incompatible with this?
It is quite startling that a business whose hole reason for existence is to make as much money as possible might not be doing it most optimally due to not implementing a simple fix to their software...