The most popular question asked on a thread ahead of Facebook’s first ever public Q&A on 7 November, was “Why did you force us to install Facebook Messenger?”
He acknowledged that it was a “big ask” and caused “a lot of friction.”
However, Zuckerberg explained that the Facebook app is not focused on messaging – something he said people “do more than social networking” – and couldn’t deliver a good user experience.
“Even though it was a short term painful think to ask people to install a Facebook Messenger app, we knew we could never deliver a good experience inside a tab in the Facebook app,” he said.
"On mobile, each app can only focus on doing one thing well, we think."
The stand-alone app was ‘forced’ on people rather than letting them install in their own time because Facebook “builds for the community,” he said.
“Having all of your friends synchronised on a service is a valuable thing to do.”
However, Zuckerberg admitted that “maybe we didn’t handle that as smoothly as we could, in terms of the transition".
“We realise we have a lot to earn in trust and proving that this standalone messenger service is going to be good,” he said.
He also answered questions on why he wears the same t-shirt everyday: "I feel like I'm not doing my job if I spend any of my energy on things that are silly or frivolous about my life."
And about the film, The Social Network: ""I haven't spent a lot of time thinking about that movie in a while. I kind of blocked that one out."