The number of times I’ve returned to a message I’ve left in a slack/forum thread to find typos, missing words etc is embarrassing.
I can’t imagine my emails would be any better.
Extrapolating from the Internet experience, however, I believe it's likely the whole world is plagued by gibberish. Stuff like, to use a recent real example, "hey i dont see your emails in orgs SENT AILFOX", which I was asked by the recipient to translate to real language, and which turned out to mean "Hey, so I am an impatient idiot and couldn't wait 15 seconds for our janky SaaS mail interface to load before shooting you a passive-aggressive message".
(Whenever I start thinking too many good thoughts about humanity and people in general, I get shown stuff like this to be reminded that niceness and good communication exist only in sci-fi shows.)
I'm not sure what you mean by "ghosting" in this context, but if you mean the situation where you ask more that one question in your message, and the recipient silently ignores all of them except the least important one, then yes, that's something I witnessed in both Polish and English from people from all around the world. I assume it generalizes too.
As for meandering sentences, that's a different subject to being careless and not giving a frak - but there's a reason summarization is one of the most popular uses of LLMs.
By this, they mean, “Hello. Many people write like they speak, not in a lengthy way. It happens due to a lack of time, do you agree? Nevertheless, I apologize.”
Then again, it's still extremely poor communication whether they put it in an email subject or body.
I'm not okay with text that's hard to impossible to parse due to the sheer volume of errors. And I'm not okay with lack of care behind sending "write-only" messages. Surely, if the sender read what they wrote, they'd realize that "yea no tim 3 bokS APSL" is not comprehensible. It's merely decodable, with significant effort.
(Notice the difference between your example and mine is that yours lacks the distinctive set of typos/errors made by someone who types on a phone, badly. In fact, guessing what kind of device one uses is helpful - but sometimes insufficient - in decoding the gibberish :).)
If the spelling is wrong, there's almost no communication taking place at all, jus gibberish, as you say.