li*******@gmail.com wrote:
I'd like to know more about the possible use of character entities in
eg: google groups,
There's no such thing as "google groups". They're something else
(largely Usenet) presented through a Google-hosted web-based interface
and labelled as "Google groups". Underneath though they're still the
same old ASCII-based format that has been around for decades -- HTML
and character entities are simply inappropriate.
If you mean the use of character entities when posting too and from the
Google Groups web interface, then Google seem to have thought this out
pretty well. They're used when necessary where content is presented to
a browser, but they're not needed when manually entering content.