I have often thought about the “how we access these sites” factor but somehow forgot to mention it in my reply. I think that might actually be the biggest factor of all - most people these days access the internet from their phones. Facebook and Reddit are designed to be optimized for your phone - WB is, frankly, terrible to use on a phone compared to those apps. WB is awesome for a desktop but that’s not how most people browse the internet anymore. Typing on a computer is much easier than on a phone or tablet as well so the trend away from desktops has also brought on shorter, less thoughtful posts.