Add final section for Validoopsie

Author: rich-iannone

docs/blog/survey-validation-libs/index.qmd

@@ -297,3 +297,16 @@ object-oriented models. Unlike Pointblank's comprehensive reporting focus, Valid
 simplicity and composability. The library is more lightweight than the others but still provides a
 generous suite of validation checks.
 
+### Unique Strengths and When to Use
+
+- highly composable validation rules that can be mixed and matched
+- custom validator creation with a simple, consistent API
+- pipeline-friendly design that integrates well with data processing workflows
+- minimal dependencies and lightweight footprint
+- excellent support for creating domain-specific validation libraries
+
+Data practitioners should choose Validoopsie when they prefer a composable approach, need
+flexibility for custom validation logic, or want to build reusable validation components that can be
+shared across projects. It's great for teams that value simplicity, testability, and the ability to
+compose complex validation workflows from simple building blocks.
+