I joined over four years ago but today I unbookmared Designer News due to the lack of quality content and collaboration this site once had. One of DN's biggest downfalls was taking away the invite system for new users. It's been a good run DN.
And Medium posts. Can't forget those. And also the people who post blog spam, but get little or no response, so they delete it and post again. Good times.
You're going to miss lots of Dribbble posts.
and product hunt posts