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Feature flags have their benefits but can lead to a more complex codebase, waste time on dead code, make testing harder, and prevent hard decisions from being made. Different categories of feature flags should be managed differently, and it's important to acknowledge their existence to align expectations between developers and PMs. Removing feature flags can be a challenge and requires accountability. Overall, feature flags are a powerful tool when used appropriately.

Feature flags are ruining your codebase

What’s wrong with the feature flags addiction

Yesterday: feature branches are complicating your development and creating bugs in production
Everyone: agreed!
Today: feature flags are ruining your codebase, complicating development and leading to bugs in production
Everyone: agreed!
Tomorrow: feature branches are complicating your development and creating bugs in production
Everyone: agreed!

love the conclusion
<blockquote>
feature flags are a GOOD thing. They are just another powerful tool at our disposal, and we need to make sure it’s not overused.
</blockquote>

IMO Feature flags are useful while refactoring the component as well