A lot don't care if it is. I've had friends share things and I stopped replying with "you know this isn't a true story/fact/real image, right?". Their response is always "idk i thought it was funny/interesting" which is valid. I felt like I was raining on parades so now I usually just respond with an emoji.
Reddit is the fakest social media platform out there. The amount of fabricated situations like "my marbles totally aligned like this by themselves", or "my husband eats his hotdogs with toothpaste" and it's a picture of something odd but that someone could easily fabricate and take a picture of is just crazy. That kind of posts always reach the top pages too.
The problem is though that even if they "just think it's funny", over time it gets built into their worldview.
It's like people who only consume TV shows and movies, they know it's all fiction, but if you talk to them about how the world works, you realize that all their mental structures are based on Hollywood tropes.
This even tracks to reddit, where everyone knows it's bullshit and reddit is dumb, but their entire perception of the world is still reddit's dumb views anyway.
