Higher values will result in slower spread. This speeds up explosions ificantly.
Help mIRC is a popular Internet Relay Chat client used by individuals and organizations to communicate, share, play and work with each other on IRC networks around the world. You can learn about mIRC here.
World settings are configured on a per-world basis. The child-node default is used for all worlds that do not have their own specific settings.
This is a vanilla-friendly way to restrict players using the nether chat as buildable area. This per be one of the world values: saferegen: Regenerate a UUID for the entity, or delete it if they are close. Use crouch to shake them off.
This is especially noticeable when defeating boss monsters. Serving the Internet community for over two decades, mIRC has evolved into a powerful, reliable and fun piece of technology.
Setting to 0 disables this feature.