Hello Uwe and David,
There is a convention for emails related to genealogy.
As you know, we get a lot of email from these newsgroups that we all like!
Well, in order to make it easier to scan through genealogy emails, people
capitalize surnames that appear in the body of the email and in the subject
line of the email. Absolutely no offense is intended. The use of this
habit is meant to be helpful to all of us!
I have seen request in several newsgroups will remind new people to do this.
In other emails, yes the capitalization can be meant to represent yelling or
shouting. Keep in mind this can sometimes be happy shouting for good
things, not always for bad things. The downside of having too many words
typed in capital letters is that it is hard to read. So, in general, unless
you want to emphasize something, it is best not to use it.
Have a great day!
Marilyn Ruhe Wethington