While I lost my 2014 account in the great 2022 reset, I do remember the Null's DOTA2 avatar (as well as a different forum smiley that was lost to time). The Like button was called "Mm, yeah".
When stickers were introduced, they were used as backdoor moderating, which Null hated and told them to just report posts as there as a small picture of a janny sweeping up Autistic and Dumb stickers (in their FamFamFam Silk appearances).
The problem is that the sticker notifications make the problem of "feature tourism" worse because people just shit on threads and leave.
Solution #1: Go back to a simple Like system. No Dislike/Dumb/Disagree. If you Disagree, say so. If it's Dumb, say so or report.
Solution #2: Re-introduce sticker notifications but only for negative ratings. This eliminates the "collecting lucky charms" dopamine hit that Null wants to avoid while also telling people that their posts are poor quality.