The reportercreate permission type checks whether the current user has permission to create issues in a given project. This is different than the default reporter or the current reporter permission type, which make the project visible to all users.

Additionally, note that this permission should only be applied to the Browse Projects permission. If applied to other permissions, especially the Create Issues permission, it causes Jira to go into an infinite loop, and that is the reason why this permission type is disabled by default.