Description - There is no way to report on the dates specified in user Schedules.
Why is this feature important to you - It would be helpful to have proactive views of the dates identified in Schedules to support advanced, aggregate planned. For example, plotting Schedule dates in a calendar report would help cross-reference when news items should be published.
How would you like the feature to work - Much like a Time Off report, allow a report or calendar to list dates in a Schedule.
Current Behaviour - As discussed in this Question, workarounds are duplicative and labor-intensive. For any admin with more than a handful of Schedules, workarounds are likely not worth the work.