Key Web3.0 Developments: Ethereum Execution Debate and X’s Controversial Location Feature

Ethereum continues to be at the center of technical and privacy debates as the crypto community weighs in on smart contract architectures and platform features.

Four researchers from Offchain Labs, the team behind Ethereum Layer 2 protocol Arbitrum, have publicly challenged Ethereum co-founder Vitalik Buterin’s suggestion to adopt the RISC-V instruction set architecture (ISA) for Ethereum’s execution layer. In a detailed post on Ethereum Research, the team argued that WebAssembly (WASM) presents a more flexible and sustainable solution for Ethereum Layer 1 smart contracts.

While Buterin has promoted RISC-V for its potential to dramatically reduce zero-knowledge (ZK) proving costs, Offchain Labs cautioned against using a single ISA for both contract delivery and ZK-proving. The researchers proposed separating the “delivery ISA” (dISA) from the “proving ISA” (pISA), noting that WASM can serve as a robust dISA while still enabling RISC-V-based ZK verification on the backend.

“WASM can act as an Internet Protocol for smart contracts,” the team wrote, highlighting its type safety, widespread hardware compatibility, and mature tooling ecosystem. They warned that locking Ethereum into RISC-V could limit adaptability as ZK technologies evolve, while WASM-based ZK virtual machines, such as Ligero’s Ligetron, are already demonstrating performance advantages.

Vitalik Flags Privacy Risks on X

Meanwhile, Vitalik Buterin has raised concerns over privacy in social media after X (formerly Twitter) rolled out a new feature showing users’ country locations. The co-founder agreed with crypto users who flagged the change as potentially risky, warning that some individuals could be identifiable to bad actors, particularly high-net-worth users.

X director of product Nikita Bier framed the feature as a way to enhance transparency and verify information, but crypto executives called it “mandatory doxing.”

Uniswap founder Hayden Adams criticized the implementation, stating that while opt-in location features can be acceptable, forcing all users to reveal their country is “psychotic.”

Buterin acknowledged the feature’s potential benefits for visibility and community insights but stressed that non-consensual disclosure could jeopardize user privacy. X provides an option to display only regional information or disable country visibility altogether, though critics say privacy-sensitive users may still face risks.

Other crypto commentators, including venture capitalist Nic Carter, noted that the feature could help prevent misuse by overseas actors attempting to masquerade as local accounts. The debate underscores the ongoing tension between transparency, user security, and privacy in Web3 and social media platforms.

To sum up, these discussions highlight the dual pressures facing the crypto ecosystem: balancing technical innovation with long-term adaptability, as seen in the WASM vs. RISC-V debate, and ensuring user privacy in an increasingly transparent digital world.