Arbitrum MEV Bot Fires 1,984 Txs in 167-Second Blind Profit Bursts

Unverified Arbitrum bot fires 1,984 transactions in 167-second bursts, landing 8 profitable executions ($6.55 revenue, $2.53 net). Pattern reveals blind arbitrage: on-chain probing of live DEX state, no mempool visibility. Profitable bursts last 84s median vs 5s unprofitable. Contracts unverified.