I love this, but how do you end up with 739 users? That's both a lot of users, implying that this isn't just a total hobby, and also not a lot of users, which means it hasn't been marketed THAT heavily. What's your secret? Where do you find that niche?
I'm now starting to think in terms of high-leverage videos that celebrate strangers on their birthdays (that are more likely to spread based on merit / wholesomeness rather than ad budget alone). Here's an example of one of these videos (https://www.youtube.com/watch?v=gSOt2_dIiPI)—hoping to keep iterating and testing out various ideas (with the same core idea of celebrating strangers on their birthdays).
Thanks for your comment, and feel free to let me know if you have any ideas or follow up questions :)