Started on August 6, 2014. It's a side project of mine. I built a website (Django), a native iOS app (Swift), a native Android app (React Native), and some automation tools. It brings around $1200/month via iOS in-app-purchase, sponsorship, affiliate links etc. I keep a full time job while doing this content curation thing at night (2~3 hours per day). So far, I've curated 5000+ articles and I've written over 1 million Chinese characters for comments -- The Chinese translation of all Harry Potter books consist of 2 million Chinese characters :)
Over 3 years, it accumulates over 140,000 followers across 10 content distribution channels as of today (Sep 1, 2017), including iOS push notifications, android push notifications, Weibo, Twitter, chrome push notifications ...
It's in Chinese, so it's pretty much unknown to the English-speaking world. Hacker News and Product Hunt are English only. Non-English projects are not allowed :( I hope my side project can fill the gap between Chinese-speaking makers and the English-dominant tech world. I believe doing good is the best business model.
Checkout my Indie Hackers interview (in English, of course): https://www.indiehackers.com/businesses/wanqu