Comment by Mayzie

I mean, Flappy Bird was popular in late 2013/early 2014, nearly 7 years ago. If you’re a HN reader and currently aged 16 or 17 years old, you would’ve only been 9 or 10 years old at the height of its popularity. Somewhat reasonable to not know about it at that age, so it is entirely possible that some people on HN might not know about it at all.