I’m glad it’s not a thing here because as a “positive” incentive I feel like it drives some users to vapid karma farming over actually interesting and new content. That said, I occasionally miss it when there’s some unpleasant commenter douchenozzeling all over a thread and it’s an easy way to see if someone is always an unpleasant ass or if they’re having a bad day and otherwise make valuable contributions to Lemmy.
Some form of translation, ai or not, along with an image description option (that users would proofread before posting) could actually be cool.