I had a great time seeing The Prom. It's both hilarious and heartfelt. Yes, I laughed and cried. The cast is terrific and everyone gets their chance to shine. I highly recommend it.
If you can't find posts about The Prom then I'm thinking that All That Chat can't search for posts older than a certain date.
Also - if you are looking for opinions on shows, you can also check out Show-Score at https://www.show-score.com/. It's sort of the Rotten Tomatoes of theater with people giving numerical scores to shows they've seen plus also writing reviews.