If you want to quote a message that contains other quotes or formatting, click the Peek button to open a window that shows the formatting codes: this you can cut-and-paste into your reply. Then you don't have to manually duplicate that coding.
If you want to make clear who is being quoted, use the following:
[qs=nwr]it would surely help if I could reply by posting quotatons[/qs]
will produce
nwr writes:
it would surely help if I could reply by posting quotatons
There's lots of help just to the left of your reply text box.
Dost thou prate, rogue?
-Cassio
Real things always push back.
-William James