They are showcasing forum awards
Thank you I was so confused
They denote occasions where users have done something notable or won something. Usually this means forum awards, BTC challenges, tournaments, etc. But people like @blakkaz have gotten unicorns for the best humor / roasts. So it really varies.
Exactly - they acknowledge musical achievements and community contributions.
it should be a narwhal emoji
A cookie emoji
Basically do something for the community, get enough recognition, and you’ll get one.