Go to my blog and press edit.
Blog description
Sort:
I think... lol.
I did it, and saw that you have it too. How you get it?
Its the custom side bar thing/
where?
Wait a sec.
sure! You can show me pic?
Go to "My Blog" and press edit: 
Top right.
Then wright in the Custom Sidebar block!
when I press edit
Hmmmmm maybe its only for premium? Sorry...
So annoying.
Oh, maybe
Yeah... you could probably ask a moderator or staff about that, might be a bug, but probably not.
Hello lol.
How to add description to a blog?
For example:
@Pigeondabirb0706's blog
Thank you for helping!