The big thing about this release is it is a huge leap forward to making Swift a cross-platform language, and not something only built for Mac/iOS
Swift 6 unifies the implementation of Foundation across all platforms. The modern, portable Swift implementation provides consistency across platforms, it’s more robust, and it’s open source. macOS and iOS started using the Swift implementation of Foundation alongside Swift 5.9, and Swift 6 brings these improvements to Linux and Windows.
Swift is designed to support development and execution on all major operating systems, and platform consistency and expansion underpins Swift’s ability to reach new programming domains. Swift 6 brings major improvements to Linux and Windows across the board, including support for more Linux distributions and Windows architectures. Toolchains for all of the following platforms are available for download from Swift.org/install.
Why? Automod is just a tool, the issues people have with it is how overzealous the mods using it are. If you're moderating a community with 10,000+ people you can't expect to filter and manage everything yourself, so a bot scheduling posts and filtering potential spam/low effort content is necessary.