For starters, there are like 100k platforms for "sharing" stuff. Where I live, facebook and to some degree instagram completely dominate the social media market

For starters, there are like 100k platforms for "sharing" stuff. Where I live, facebook and to some degree instagram completely dominate the social media market: think 95% and above. People are creatures of habit and they get used to the platforms they use as they evolve. In addition, most users use a smartphone most of the time. And by extension, most of the time they spend on their smartphone is distributed among a certain number of apps(low, single digits). If anything new comes along, you first need to gain some market share by squeezing yourself into that time slot, which is nearly impossible. I spent most of my career at a company that solely developed games for smartphones and I did countless studies on the matter. The South Park episode about freemium games couldn't possibly be more accurate. So much like no one on HN wants any updates from the board itself, people get what they want and so long as it works, they will complain but keep using it unironically. I got a chance to speak to reddit admins a few months ago and they admitted that till this day, they all, till this day use old reddit, even though new reddit has been around for more than half a decade and now there's new-new reddit. Same reason no one has made a new myspace - it was great back in the day. By today's standards, it would have been a security black hole but it did it's job back in the day and if not else, it taught a large number of people some basic html and css skills. Today, no one cares about shiny profile pages with sparkles and music. That's kinda the first rule in monopoly: you are either first or you are last, along with everyone else. It doesn't matter if you have 100, 1000 or 10000 users - you are still at the back of the pack, not even getting scraps for dinner.