I was also wondering the same question, I don't know who gave me karma and in what topic or post.
I understand the admins' point of hiding this so the system isn't abused, but I expect it's useful for members to at least know on which post they received positive or negative karma because it helps members know the quality of their posts.
This is my concern too. When a user received a karma from another user, even if the user can't be identified, let's the post be identified so that the person will know how he has been contributing to the forum and Places he needed to improve. This will also makes some board to improve because there are some baords that are inactive for the past 30 days, some don't have new threads but existing ones where some people go there and do there normal spamming.
For the benefits of the forum, the admin should do this. This is 2024, the forum is improving and it seems the mixers are making the forum live again, don't let this sleepoff your hands. I'm waiting for that notification though, the telegram bots in particular so as to follow up discussion properly.