Doesn't say much as many of these could have just tried lemmy.world for a few minutes and then discarded the account. Or they could be super active. The statistic doesn't say.
Same here, I created my first account there while simultaneously creating this one on Kbin.social. With all the issues there were with lemmy.world I've decided to use this one for a while instead to see how I like Kbin. It's been pretty nice so far, the only thing that sucks is that I haven't found a good Kbin app for Android yet.
It is and I have it installed but it's not fully doing what I want it to do yet. For example, as far as I'm aware I can't log in with my Kbin.social account in the app.
It is not what is called “single point of failure “. Usually if “single point of failure “ fails, the whole thing fails. I am on kbin and experience zero failures.
If they were to actually go down (the current failures do not affect the backend), all of the communities they host wouldn't be usable anymore, taking down a large portion of the Lemmy/Kbin communities.
Only those that are on lemmy.world. There are tons of communities/magazines elsewhere. When lemmy.world goes down, I learn about it from posts. Otherwise, I would not notice.
The uptime on lemmy.world is terrible. https://lemmy-world.statuspage.io currently shows 95% uptime, but it has been "down" from a UX perspective more than half the time I attempted to use it. The uptime reporting is simply not picking up when something is off as much as it should. And they recently added an archive.org proxy for when it goes down... what the heck? I understand that it is run by volunteers and all, but what a buzzkill.