nontribution 

a comment which adds little or no value to the discussion at hand; a failed attempt at contribution.

“At first the student sounded smart, but the silence and blank stares filling the classroom revealed the emptiness of his nontribution.”

nontribution by clareification December 7, 2010

Nontribution 

The opposite of contribution

This group is finished with your attitude and nontributions

Nontribution by JasonXavior February 17, 2018

Your contribution has been noted 

A sarcastic phrase used after someone gives you their unwanted opinion or advice.

Debbie: "I think you should try being a bit more social with your workmates"
Emily: "Your contribution has been noted"

Karla: "I like your dress, but that's not really your colour"
Emily: "Your contribution has been noted"

Your contribution has been noted by just like honey July 1, 2017

Bush's contribution to the arts. 

The looting of the Bagdad muesum in the second gulf war.

What do you think about Bush's contribution to the arts?Bush's contribution to the arts.

Bush's contribution to the arts. by Deep blue 2012 March 11, 2010

Contributions from Viewers like You 

Passive aggressive way PBS asks for donations.

PBS: and contributions from viewers like you. Thank You.

Viewers like you: better go contribute now, I guess.

Contributions from Viewers like You by KEMMA SLAY June 27, 2016

net contribution 

Either literally a financial amount or figuratively towards an artistic (or other) genre that an individual has made during their lifetime. Also used sarcastically.

1. The net contribution of Beethoven to the Symphony is incalculable.

2. Joe Blow, net contribution to society - nil.

net contribution by Jonathan FeBland (Znethru) October 12, 2006

Campaign contribution

A campaign contribution is simply a bribe.

We contributed to the President's campaign by sending him loads of $cash. Thus, we gave him a campaign contribution.

Campaign contribution by Part Ridge October 28, 2007