[JefffJohn555]

Brilliant! I remember thinking about this problem a few years back: what stops miners of a blockchain just ignoring transactions/anything from certain entities. So it's good that there exists a way to track such behaviour, if it is occurring.

[martinko]

Economics. If miners consistently ignore certain transactions, there is space for new miners to enter the market and earn super-normal profit. After the next difficulty adjustment cycle, the old, censoring miners may be priced out.