According to @provenauthority, the ERC-721 standard remains a foundational technical protocol for NFT trading, with strong community engagement from projects like @billions_ntwk and @ink_dao (source: Twitter, June 1, 2025). The continued popularity of ERC-721 highlights its importance for NFT liquidity and interoperability, essential factors for traders seeking reliable and widely-supported digital assets. Active communities around these standards can drive trading volumes and introduce new NFT utility features, supporting robust market activity.