Post agree/disagree hack

[ILTK]

I saw a neat mod on a forum that allowed people to post a short comment on a post or reply in agreement and disagreement, the comments that people made got inserted in a small box like the one used for a quote inside the post/reply like this:

--Comments on this post:--------------------------------------
|Nick1: Agrees. bla bla bla bla bla
|Nick2: Disagrees. bla bla bla bla bla
|Nick2: Agrees. bla bla bla bla bla
---------------------------------------------------------------

I searched a bit and found the "post thanks" plugin, but it's not quite the same, it could be a custom mod or I just can't find it in the Add-ons section.

Anyone know if this plugin exists?

TIA

I'm using 3.5.4 btw