Board Thread:Support Requests - Getting Technical/@comment-37839302-20201021205215/@comment-9605025-20201021210747

You are not the only person to be confused by this. The reason is that the placement of the checkbox was taken from the legacy platform. However, the legacy platform did not generate a protection log entry for it. In short, UCP is attempting to combine new functionality with a familiar layout.

While the placement might make sense for veteran users, it can cause confusion for new users. I think the ideal solution would be to allow the comment toggle both in the bottom bar and on the protection settings.

That said, one reason why Fandom may not have added it to the protection settings is that comments is not a standard MediaWiki feature while the protection settings are. To combine them would require that they create custom code to mix the two things together; which is something they want to avoid. Yes, they still have to mix codes when adding it to the editor but the editor is already being customized anyways.