Please just quote the part that you are replying to. Over quoting just clogs up the thread and makes it difficult to read and follow, and nobody reads all the quoted posts anyway.
Hi!
Reasonable, but sometimes it's important to know what the dialogue started with.
I agree that it's important to know what started the dialogue but when someone quotes 13 posts, something is definitely wrong. Especially when the last handful of messages are the same quotes over and over again. I'm not reading them and I assume that a lot of people are not reading them either (maybe I'm wrong). A common ground should be found between trying to make what started the dialogue visible and quoting everything without a second thought.