So like 30x the population (not thousands).
The thing about Reddit is it really amplifies voices. 10-100 people can be on the same subreddit and comment or post something, and it looks like “a lot” of people.
It’s also much easier to be a non-representative sample at 3% of the population than 50%. And, there’s a big sample bias for this sort of thing. I think someone is way more likely to post “I’m getting rid of X” versus “I don’t care and I’m keeping X”.
For Facebook alone, it’s less than 30x. The “family” in “Family Daily Active People” is also referring to “Instagram, Messenger, WhatsApp, and other services.”