Totally wouldn't work. We Americans believe in a brotherhood/sisterhood of suffering. I
As someone who's been in the compulsory military service, this is exactly what would happen. The "old cans" in there haze and expect the newbies to suffer like they did.
the use of saying "it's like email" is to explain how lemmy.dbzer0.com can talk to lemmy.ml, similar to how gmail can talk to hotmail and why in fact there's lemmy.dbzer0.comandlemmy.ml (in the same way there's gmail and hotmail). That's it and doesn't need to go deeper than that to be a useful comparison.
Look, I was there when email was a ISP thing. All emails looked the same everywhere because there was no support for anything but text, so that's a supremely nerdy nitpick that doesn't apply to the conversation.
I very much remember the mess when HTML and rich text emails were introduced. I remember back and forths about missing attachments. It was nowhere near as rosy as you remember.
Anyway go touch grass or whatever. My point only is that email went though similar growing pains and it was only helped in the mainstream initially due to ISPs and later on due to massive centralization. The same thing we're trying to avoid with the fediverse.
For another, my emails look like emails everywhere, both on source and destination. I don't have a different character limit or feature set about what I can slap into my emails depending on what client I'm using, and I'm reasonably sure my email looks the same on the other end, no mater what client the recipient is using.
This is mostly the case now due to centralized email by a few providers and bountiful bandwidth, but it was certainly not the case 20+ years ago.
Also, not the part of Mastodon specifically that people didn't understand, they just tried to log in, were presented with a thousand instances, told choosing which one to use was super important but also that it didn't matter and they should keep changing instances later, but also that migrating instances was not an easy process, but don't worry, it's just like email.
People used to do the same with email before google and microsoft dominated email. It's just that in most cases, your ISP provided you with an email when you first signed up. Switching email provider currently is way more onerous than switching mastodon or lemmy providers. If each ISP nowadays hosten their own say, friendica server and provided you with a login immediately, it would have a similar effect of solving this difficulty of choosing.
heh, sadly it doesn't prevent you seeing their opinions in comments. But still, it ensures that they won't ever appear in your own OPs.