Once global account blocking is working we should deploy it progressively on WMF wikis using the configuration added in T356923: Create a configuration value to control whether global account blocks are enabled.
The deployment plan is to:
- Request feedback from stewards, allowing them to test the feature on beta wikis (T367647)
- Deploy to all wikis at once, due to the confusing nature of global blocks not applying to all wikis
Stewards will test on production carefully using their own accounts first. Once the feature is confirmed to be stable, it will be used by the stewards. Points on whether stewards can use the tool under global policy would be addressed by the community separately.