A shout-out is somewhere between an approval and a decline. You should use it when you like a song and want to give it some love, but don't like it enough to share on your main outlet.
Some examples:
Does a "shout-out" count as an approval?
No, and also yes. It's somewhere in the middle :)
No, because it isn't a "proper" share to your main audience. The email sent to the submitter says "Declined, but still sharing" in the subject line, and includes the reason you provided about why it's not right for your main audience. So from the submitter's side, this is considered a "declined submission".
Yes, because you still have to actually share it, just like you'd share a normal approval. Until you share it, any associated premium credits are held up as "pending," just like a normal approval.
How it gets communicated:
From their side, it's sort of "Declined, but still going to share to a smaller ______." From your side, it's "Approved, but only going to share to a smaller _____." Hopefully that's not too confusing :-D
When you approve a song for a shout-out, we tell the submitter that their song has been declined, but that you're still going to share it somewhere small. When you share that song, we remind them that it was only a "shout-out," but still give them all the necessary links, as if it was a normal approval.
How does this affect your statistics?
Shout-outs are treated as approvals in your statistics, including your approval rate and engagement score. Visually they are typically "split out" (eg, "This curator has a 3% proper share rate and a 2% shout-out rate"), but when it comes to the Engagement score and Genre match score, the historical data around these two methods of sharing is combined.
Where you can find the option to share a song as a shout-out:
After selecting "I like this song", you'll see the option to choose between a proper share and a shout-out.
As a Spotify playlister, what are the minimum requirements for shout-out vs. proper share?
How many shout-outs can be approved?
To avoid too many shout-outs, only 30% of all approvals can be shout-outs. If you are a "Really Good Blogger," you cannot shout-out more often than you do a proper share.