Meta announced USDC creator payouts on Solana and Polygon last week. The on-chain reaction is starting to show (Santiment MCP + Claude): 📈 Solana USDC daily active addresses: 632K (Apr 26 baseline) → 745K (Apr 29) — +18% in 4 days, breaking out of a tight two-week range. 🆕 Solana USDC new addresses peaked at 180K on Apr 29 — the highest 2-day burst in two weeks. 📊 Ethereum USDC over the same window? No comparable breakout. The acceleration is chain-specific, not a generic stablecoin story. Capital and users are showing up where the rails were announced.(Santiment Intelligence)