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How the CoinTech2u team migrated from ERC20 to TRC20/BEP20 — not because gas is too high, but because 800× cost volatility makes automated fund routing impossible to budget. Includes post-Pectra ERC20 fee data ($0.05–$40+), a full ERC20 vs TRC20 vs BEP20 comparison, and the 4 scenarios where ERC20 is still irreplaceable (institutional cold storage, DeFi, compliance reporting, single-chain exchanges like Gemini).
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