Some newsletters are just too long for my liking. I can read long ones if they are genuine essays, someone sharing what they are or have gone through. Some life experiences. Or something of interest for them. But when you curate, and still have hoards of links to some external content, I am not in. In short, long texts are fine for me. Not 100s of links.
When you say you curate, you should curate. Not include link to everything that you and your friends read.