it should be autonomic. you shouldnt ever 'decide' to use a turn signal. it should be an automatic reaction to the vehicle turning 100% of the time under any and all circumstances.
i personally know dozens of people self hosting email. tens of thousands of businesses have been hosting their own email for decades. i dont think you can take self-hosting away from email by pointing out the billion users are 17% on google (or whatever).
im not disagreeing with you that the big guys have big market share, but email is vast and ubiquitously self hosted.
nope. every instance can post to any other instances groups. my 'home base' instance (moist) has almost no local communities, but the users can interact with all of the lemmyverse
if you look at the group list you'll see they are all remote groups that local users can subscribe and interact with locally
my instance has a 'copy' of the remote content. when a local user interacts with that content, it is sent to the other instance.
its what the 'federation' in the fediverse means. all users can subscribe/upvote/interact with 'remote' instances. the actions of the users are federated between instances.
it should be autonomic. you shouldnt ever 'decide' to use a turn signal. it should be an automatic reaction to the vehicle turning 100% of the time under any and all circumstances.