[DryLabRebel]

I think this is getting at the more robust solution.

When youtube videos are taken down or made private, they are not deleted necessarily from my playlists. There's simply an indicator that they video is 'no longer available'. I don't see why something similar can't be the behaviour for GitHub stars and watches?

[wodenokoto]

You do lose the title, which is super annoying. "What did I used to have?" Super frustrating feeling.

Here's a list of your favourite songs, but two are missing, have fun figuring out which two it is!

[nilleo]

I recently discovered a neat trick that if you Google the url for the private video (you still have this in your list), you're likely to find the title of the video, therefore allowing you to at least figure out what it was and seek out a new video.

[metadat]

This works about half the time. It's better than nothing, but not great.

[whoibrar]

Thank You! I needed this all my life!