All email addresses are in small caps, as are all internet addresses. If you are typing internet or email addresses in large caps, you are in fact "doing it wrong".
It means they are Shouting.
Common unspoken rules. For example: ALL CAPS IS CONSIDERED YELLING>
Any word that is all caps in email signifies that the writer is yelling.
Using all caps on the Internet should be avoided, including in your e-mails. The reason you should avoid using all capital letters is because of Internet etiquette rules. Using all caps is interpreted as shouting.
all of these are reasons to avoide
It can mean they're screaming at you, they have no clue that cap lock and bold are on, or they don't know the netiquette that says it's impolite to use all caps. Or the keyboard could be broken.
It is hard to read and a little bit rude... I use it all the time if I'm exited though. It's like YELLING! :D ask if you have any questions.
You avoide all the weather conditions and the turbulence
The acronym should be all caps: CPR.
Tcp/Ip (should all be in caps but it won't let me submit the answer in caps
Swear Misspell use all caps abreviate sarcasm