This makes me think of grouphug.us (now gone) which was a pretty neat concept and was reborn/reinvented a couple of different times before the author finally took it down.

Overall, grouphug was a really cool site with a lot of neat statements.

I feel like the way sharesolo is designed helps in promoting a variety of different posts, with the photos/instagram feel behind it. Promoting it during the holidays will also have an interesting dynamic. I think it will be interesting to watch and see what people post.

Although there are some implementation aspects I don't like, I really do like the concept and the layout.

sidenote: For some reason it asks Firefox mobile for microphone access, but I was able to post something by using the web panels in Vivaldi desktop.