This is what happens when behavior is implicit instead of verified.

Bitcoin Core didn’t fail because it’s “legacy.”

It failed because destructive behavior was possible without a provable contract saying it must never happen.

Deleting wallets—even legacy ones—should be unrepresentable behavior, not something guarded by comments, assumptions, or tribal knowledge.

This is exactly the class of failure Behavior-Driven Verification exists to prevent:

Explicitly define what must never occur
Encode it as executable, reviewable behavior
Make regressions impossible without an explicit, auditable violation

Most teams don’t have the patience or maturity to do this work—especially in cowboy ecosystems that prize velocity over certainty.

So yes, the damage is already done.
But it didn’t have to be.

This is why serious financial infrastructure must be built on verified behavior, not developer intent.

#Verification
#Bitcoin
#SoftwareEngineering
#DamageBDD
#TrustIsNotAControl
#BehaviorOverBelief