Ann is a FRiend, which is why we should voluntarily send her the traffic.
If that’s your preference, by all means excerpt and link.
My preference is to post articles in there entirety, including a link to the source. Using the link is entirely voluntary.
That way a reader can read the entire article without being forced to click on a link to continue. If the reader enjoyed the article, the source link is there if the reader has further interest.
Either preference is a compliment to the writer and can drive traffic.