A killer feature cohost had compared to every other social media site I've been using is rich webpage embeds. Any webpage you linked to, it had a high chance of embedding a usable, readable, etc. copy of whatever is at the site. It wasn't just OpenGraph previews, but a richer embed of the site's actual content much of the time. Means there was less of a culture of sharing inaccessible screenshots, and more just pasting links.