What means the unicorn response?

Hi developers,
just now i have a little question. After we written an article, readers can response in three ways:

• heart
• unicorn
• reading list

The first and the last i can imagine, what it means. But what says the unicorn?

Comments

[Adam Crockett 🌀]

None of the responses have any real use. So whatever you do, don't heart this comment.

[Elena.NET]

you loved the post but in a magical way (?)

[Ice or Fire]

Yeah I wondered that too

[Heiker]

I think is like the heart but funnier. I don't think it has a deep meaning or special functionality.

[🦄N B🛡]

🦄