Ello is still operating, though its social aspect is fading.
The founders' initial plan was to create an artists' and designers' platform, and they've pivoted hard back in that direction over the past couple of years.
Not really. I'd have to dig for references (one of the site's failings is terminally flawed search), but it really was an artists' & designers' space.
That orientation allowed them to make additional pledges, including ad-free and no tracking, and yes, they did pledge that. But the SNpivot came after the initial interest boom in September, 2014.
From Crunchbase: "Ello was originally built as a private social network. Over time, so many people wanted to join Ello that we built a public version of Ello for everyone to use."
https://ello.co/ https://www.cnet.com/news/meet-ello-the-social-network-that-...