Kudosier 

An expression used to show that you really appreciate something and want to award it its due kudos. Usually accompanied with the mimed use of a magic wand.

I love what you've done with your hair! Kudosier!

Kudosier by Brett Davies September 19, 2007

Kudoser 

(noun)

a person who has left kudos on your work (most especially on ao3)

"I'm so glad to be the first kudoser on your work"

Kudoser by marthisone'sforyou November 13, 2021