It's still helpful for messages. The social share/thumbnail isn't always available

A user is more likely to click on

https://unfamiliar.site/c/cats/192837/my-cat-napping-in-the-sun

compared to

https://unfamiliar.site/post/192837

I'm not saying that this should take priority over all the other things the developers are doing, but I'd still like to see it implemented at some point