Although it's not first of it's kind (at least the same goal), I really like technology which is helping to solve a problem rather than searching for one (there's far too much out there searching for it). This comes from a good place and like the story:

The Trill Project began in January 2018, by four high school girls who wanted to launch an application with a widespread positive influence around the world, that would make a serious impact on people's lives.

I think that they've thought this idea out well and the use of anonymity, machine learning based moderation aids as well as being open to everyone, anywhere really compliments the idea.