Relax OP_RETURN standardness restrictions

In a recent discussion within the Bitcoin Development Mailing List, Pieter Wuille provided insights into the challenges associated with mining centralization. The conversation also touched upon the consequences of such centralization, particularly highlighting how it might enable entities like Ocean Pool to orchestrate reorganizations of competitor blocks that contain inscriptions. This scenario underscores the complex interplay between the decentralized ethos of blockchain technology and the practical realities of mining operations. The dialogue suggests a critical examination of the mechanisms underlying block reorgs and their implications for network security and integrity.

The exchange between Pieter Wuille and Sjors on the mailing list brings to light the nuanced debates prevalent among developers concerning the direction of Bitcoin's evolution. The specific mention of Ocean Pool's potential actions raises questions about the balance between competition and collaboration among mining pools, as well as the overarching impact on Bitcoin's blockchain stability. Such discussions are vital for the continuous improvement and safeguarding of the blockchain against centralizing forces that could undermine its foundational principles.