Minor There was a similar issue way back when.
I was trying to find the actual fix for that but could not seem to find it (too old I guess).
But if you schedule a post to not go out until a certain date, the RSS feed pulls it right away defeating the object of scheduling the post!
To recreate the issue:
Create a post that is not set to display until a future date.
Check the RSS Feed.
Notice that the post immediately displays in the RSS Feed with the creation date instead of waiting until the display date.