Education probably. Back in the day people didn’t have any problem understanding that different forums had different capabilities. When MMOs were in full swing, people didn’t have problems understanding what being on thr popular server during peak hours meant.
Everyone has just gotten too used to centralization with a lot of money behind it. Eventually people will adjust their expectations. Even if Meta’s fediverse attempt takes off, there are always going to be niche communities that exist outside of those spheres, so if people want that, they’ll have to move.
The point of the fediverse is having a choice. Some people are going to chose megacorp of the week’s offering and that’s okay as long a little pockets exist for when people get mad at the megacorp. Also federation leaves space for multiple dominant platforms in a way the current system doesn’t.
In short, eventually some instances are going to be bankrolled either through a robust crowdcourcing effort or through being a company. That’s okay. The purpose of the fediverse is to allow for smaller niche ideas to be able to breathe without having to adhere to one group’s ideals. “If you don’t like it, make your own” is a fair statement now
Because it’s inescapable. Web development is by far the most common type of programming work and even if you’re a backend developer you tend to have to touch javascript at some point, so everyone knows the pain of javascript’s foot guns and javascript has a lot.
The fact that it’s mandatory to do your work invokes bitterness in people. For backend, you can kind of switch around until you find a language you like. For frontend, it’s javascript or nothing at all.
Javascript as a language is very out of sync with other commonly used languages. Its footguns are very easy to run into. As a result you have a lot of rituals around just not shooting yourself in the foot. The rituals, libraries, and frameworks around avoiding Javascript’s foot guns have been very shifting and changing. Of course, because the javascript ecosystem changes far faster than other languages, there are a lot of rakes for developers to step on to add to the naturally existing foot guns.
Javascript as a language probably shouldn’t be the sole language of the internet for a variety of reasons. It’s a very hateable language because of how easy it is for newbies to make new terrible code and how common it is. Until something like WASM takes off, the downpour of hate for javascript will continue.