I'd love to be a fly on the wall, mirroring Snapchat's Product & Experience teams. From positioning themselves as a brand to creating and maintaining an intimate space within the app, I'd be interested in learning how the magic happens!
I have created an easy service for photo anonymization. It is more for fun, but it could prove practical in case you want to post photo review on websites like Aliexpress, Wish, Amazon, etc. Everything happens in the browser. The service do not send your photo anywhere.
The application can recognize what is on the image without the need to be trained. The advantage is that you do not need to spend time training your neural network. You can just upload your images and hit predict. It is just simple.