Seems like the SNR on the list is increasing all over again. People top-post when replying, and to top that [sic], they write a two liner after quoting an entire previous mail, sometimes even quoting the earlier messages as well!
Please trim messages, and write in-line replies ... it helps a lot in terms of readability, and the size of message digests.
Also, over the years, I have found it pretty useful when the subject line is relevant to the content of the message.
Sameer.