TL;DR of the post, generated automatically.

Roblox plans to launch Ban Lists for banning players across all your games on January 29, 2027.

• Use: one list bans a player across all your games, via BanAsync's new BanListIds parameter.
• Sharing: share lists with specific Creators, or make them public. Public lists carry risk to your players, per the post.
• Migration: import an external ban list through Open Cloud APIs.