Dude, 50% of the american population uses Facebook every single day of their lives (according to FB's quarterly statements, which would be a serious crime to lie on).

I think he was making a distinction between the app and the site. AFAIK, most Facebook users utilize Facebook primarily through the mobile app. If you look at Google trends[0] for Facebook, you'll notice a linear decline since 2011. I believe this is due to the onset of the Facebook mobile app, but feel free to correct me if I'm wrong.

[0] https://trends.google.com/trends/explore?date=all&geo=US&q=f...

They have over 200 million users in the US.. https://www.statista.com/statistics/398136/us-facebook-user-...

Data point of 1: I use Facebook all the time and I think Reddit is terrible. Half the subreddits I see are toxic and the other half are people with 0 life experience. I have tried many times to derive value from it (much like Twitter, its advocates tell you you have to 'curate your feed') but no matter how much time I invest, I just can't make it work.