As far as specifically Canadian factors, maybe don’t survey us in October when the days are getting noticeably shorter? I feel like we are all a little melancholy right now preparing for our lightless morning commutes.
Why not Twitter, YouTube, reddit and TikTok?
Also there's that little itty bitty issue where Facebook was purposely manipulating people's timeline feeds to see if they could produce depression-like symptoms, without informed consent.
In addition, the nefarious bribery of brazilian telcoms to allow whatsapp to have unlimited and free network bandwidth, so as to out-muscle any competitors.
Indeed, fb did push out PR messages like privacy is dead, although I'd love to cite some source on that... all I want to say is, Privacy isn't dead facebook, you're dead!
YouTube's feed basically shows me what I am subscribed to which is interesting shit I am legit interested in. I don't see any of my friends talking about their amazing lives, or any political BS, at all. The comments section is a 3rd class citizen in much of their UI and less toxic than friends all piling in and arguing about crap.
Reddit is global conversations, the topics and comments can be toxic but it's not an echochamber by design. I will say though, Reddit does make me sad sometimes so I have to work at it to use it in a healthy way.
Twitter, Tiktok, and unfortunately more and more Instagram are also sludge pools IMO.
Reddit is a de facto echo chamber. The two biggest news subreddits are heavily censored.