Gas Fee Bidding Wars
Gas fee bidding wars occur when users compete to have their transactions processed first by paying higher transaction fees to validators. In times of high network congestion, these fees can skyrocket, making small trades unprofitable.
This mechanism is frequently exploited by MEV bots that pay massive fees to ensure their front-running or sandwich transactions are included in the same block as a target transaction. While this ensures that transactions are prioritized, it creates a barrier to entry for retail users and increases the overall cost of network usage.
Some blockchains are implementing dynamic fee structures or alternative auction mechanisms to mitigate these bidding wars. It represents a direct competition for the limited space available in each block.