Thousands of people responded to Zuckerberg's post with similar stories about meeting partners on Facebook, Cox said. We will be sure to cover Zuckerberg's second keynote address again tomorrow on the last day of the conference.
Zuckerberg even found time to make a joke about his recent congressional testimony on the data leak.
Zuckerberg said the new dating feature was built from the ground-up with privacy and safety in mind - as the social network reels from the revelation of a mass breach involving the personal data of tens of millions of its users.
Facebook held its annual f8 conference in San Jose on Tuesday.
Tech companies are under intense scrutiny about how they protect customer data after Facebook was embroiled in a huge scandal where millions of users' data was improperly accessed by a political consultancy.
"This is going to be for building real long term relationships, not just hookups, it's going to be in the Facebook app but it's totally optional". He emphasized the investments Facebook has made to stop the sharing of fake information on its website, such as artificial intelligence tools and 20,000 human moderators to flag and block fake news content and its disseminators.
"When you're a Facebook user, and over time you became aware of a comparable service, then it's less likely that you will go on to Tinder", Mogharabi noted.
Following the Cambridge Analytica scandal, Facebook has tightened control of information collected through apps. Now you're going to be able to bring your friends together and you can laugh together and you can cry together. Other new features coming to Instagram include augmented reality overlays from developers, like amusing mustaches and hats, and new ways for third-party apps to have videos post directly to stories on Instagram and Facebook.
A dating service "represents a potentially challenging situation if Facebook can't fulfill its promise to offer dating services in a privacy-protected and safe way", said Debra Aho Williamson, an analyst at eMarketer.
Looking to divert some of the attention being paid to Facebook's failings, Zuckerberg pointed to the good that has come from this massive web of digital friendships spanning the globe, from disaster relief to blood donations.
Also today, he announced "Watch Party", which will let you watch online video together with your friends in a virtual chat room. Zuckerberg said WhatsApp will also be getting a group video-calling feature soon.