(1) Allow one to finish an old course (2) Issue a certificate after successfully finishing a course

Ok, thanks, I hope your input will be taken into serious consideration.

How to share the finished course on Li? or anywhere?

This request has been made earlier by other users, not merely by you an me. The response of Khan then was to post a screenshot of your progress on LinkedIn. To me, this sounded like bad joke, particularly if you consider that when they change a curriculum all your Mastery points are gone. Perhaps Khan can make a screenshot of the past for me... :/

Something I miss about KA courses is making it sharable on Linkedin, the content is good i am developing my own pace on it using AI Tutoring as well, but I would like to be able for example to share that I just completed Unit 1 of any course on Linkedin on a easy way like when you just pwned a machine on Hack The Box you can share it on Linkedin with just a couple clicks, having a feature like that would be nice.

Seeing this post is from two years ago i don't know how much consideration has been put into that but i think is something of real matter when you choose a platform to learn from as you will be needing your future or even current employer to be able to actually see what you are currently studying.