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The problems with block leaders and mev in blockchain chains

Block Leaders and MEV: Centralization Sparks Controversy in Crypto

By

Yuki Tanaka

Jan 5, 2026, 11:40 PM

3 minutes reading time

An illustration showing block leaders in a blockchain network surrounded by warning signs indicating unfair practices and potential lawsuits.
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A rising chorus voices concerns over the dominance of block leaders and the presence of Maximal Extractable Value (MEV) within various blockchain networks. Critics argue that these factors not only jeopardize user trust but also pave the way for legal battles against companies building on such platforms.

Understanding the Centralization Issue

Centralization occurs when a single block leader emerges as a bottleneck, raising security concerns. Proponents of decentralized ledgers (DLT) emphasize that the ideal blockchain ensures fair transaction ordering. Critics outrightly label MEV and frontrunning as "financial crimes," claiming lack of global regulation only worsens the issue.

"Countries failing to regulate against MEV are setting their citizens to be robbed," stated one user on a forum discussing this contentious issue.

The Unfair Nature of MEV and Frontrunning

Many people express frustration over transactions being unfairly reordered, benefitting those with more capital to manipulate the system. Commenters suggest that utilizing blockchains with these flaws invites deceitful practices, with some branding users who continue to engage in these networks as negligent or complicit.

Whoโ€™s Leading the Charge in Criticism?

A significant number of users share animosity toward networks engaged in MEV and frontrunning. Users highlight chains like Ethereum, Solana, and BNB, calling them "trash chains" prone to exploitation. Some members in forums are hoping for legal action against these networks, particularly mentioning Solana.

Companies in the Crosshairs

The call for caution extends to companies that choose to build on platforms vulnerable to MEV. They may be setting themselves up for inevitable lawsuits, say critics.

Chains Under Fire

A list of criticized chains includes:

  • Ethereum

  • Solana

  • BNB

  • Polygon

  • Avalanche

  • Base

  • Optimism

  • Arbitrum

  • Cronos

  • Fantom

  • Cosmos

  • Celestia

  • Injective

  • Sei

  • Sui

  • Aptos

  • TON

In contrast, several contenders praised for their fairness include:

  • Hedera Hashgraph (HBAR): Zero MEV, leaderless consensus

  • Bitcoin (BTC): Limited frontrunning risk

  • Monero (XMR)/ZCash (ZEC): Privacy-preserving

  • Cardano (ADA): Resistant to sandwich attacks

Staying Safe in the Crypto Space

Critics contend that anyone choosing to transact on MEV and frontrunning chains risks getting burned. As their architecture is fundamentally unfair, it's crucial for users to stay wary.

Key Takeaways

  • โ–ณ A strong sentiment against centralized chains is growing.

  • โ–ฝ Users warn that building on MEV-chain exposes companies to lawsuits.

  • โ€ป "People who use these chains want to be ripped off," said a vocal forum member.

As discussions evolve, the demand for fairer, more equitable blockchain platforms could lead to both innovation and a cultural shift in the crypto community. Right now, the spotlight remains on chains failing their users.

Shifting Sands of the Blockchain Landscape

Experts predict a significant shift in blockchain dynamics as more people voice concerns over centralized chains. There's a strong chance that increased regulatory scrutiny will prompt innovators to develop protocols focusing on user fairness. Companies testing these waters could face backlash, with estimates suggesting that nearly half may rethink their strategies within the next year. As consumers push back against systems seen as exploitative, the pressure for better-designed blockchain solutions is set to increase, making open-source models more attractive to developers and investors alike.

Echoes from the Past

The current strife in the crypto sector mirrors the public's unease with monopolistic behavior seen in the early days of the internet. Just as consumers eventually flocked to more democratic platforms, communities today may favor blockchains seen as catering to the collective good rather than the wealthy few. This shift could drive tech companies to seek more equitable practices, echoing the evolution of social networks towards accountability in user engagement. Like the dot-com bubble, the resolve for a fairer digital landscape may shape the future of blockchain technology.