The most common FinOps mistake I see: over-engineered tagging strategy. A Series B SaaS team spent 3 months designing a 47-field tag taxonomy. Environment.
Service. Owner. Business unit. Cost center.
Data classification. Compliance zone. Criticality. Expiry.
PII flag. Migration source. CI pipeline ID. Then they realized: they can't enforce it.
Their Terraform had 80 modules. Half the resources we