How Can a Pool Operator’s Decision on Transaction Selection Affect Network Congestion?

A pool operator's decision on which transactions to include in a block is based on maximizing profit, which means prioritizing the highest-fee transactions. By consistently selecting only high-fee transactions, they effectively ignore lower-fee transactions, contributing to the buildup of the mempool and exacerbating network congestion for users unwilling or unable to pay high fees.

What Is the Primary Measure of “Network Congestion” in a Blockchain?
How Does the Mempool Relate to a Miner’s Selection of Transactions?
How Does the Mempool Relate to a Miner’s Transaction Selection Process?
What Is a Mempool and How Does It Contribute to Fee Market Dynamics?
How Does a Mempool Relate to the Speed of a Transaction Confirmation?
What Is ‘Mempool’ in the Context of Transaction Congestion?
How Does Block Space Availability Directly Influence the Miner’s Zero-Fee Decision?
What Is the Relationship between the Mempool Size and the Average Transaction Fee?

Glossar