This sounds really interesting. I’ve not done much with sheet scripting other than copy the odd script. But I am wondering if you could still use a social bookmarking service, say pinboard, then use IMPORTFEED in your sheet to grab all the links, and descriptions . This might be easier than opening a google form every time you want to add a link? Or not YMMV.
But you could then automate the creation of the newsletter as you outline above. Pinboard would be goods as you can get a feed for a tag (newsletter).
Format: Status
Goose at Ardinning

Great read Social Mobility: An Undeserving Philosophy from @disidealist
It is more complicated than we thought Is the Wolf a Real American Hero? HT @twoodwar
Autumn changes have arrived #ds106 #tdc2098 @ds106dc

This is delightful SolarBeat
I was a bit worried that #BladeRunner2049 would be too action packed but I was wrong, great long slow burn that I throughly enjoyed.
FastScripts is one of my favourite mac apps, although I can only scratch the surface of it’s power.
