Update: Quoting behaviour exposed

After looking at a few messages again, I noticed that my script also considered signatures (personal and the mailing list's) as "original" lines. Once these are kicked out, we see a far worse picture (the ratios almost double): 1%: >= 34.60 5%: >= 12.50 10%: >= 6.75 15%: >= 4.50 And the top 10 again (messages with a ratio >= 3): Jani Taskinen avg of 18.86 in 3 postings John Coggeshall avg of 14.12 in 10 postings Xavier Spriet avg of 12.71 in 8 postings Ilia A. avg of 12.22 in 7 postings Marcus Börger avg of 12.03 in 22 postings George Schlossnagle avg of 11.78 in 4 postings Moriyoshi Koizumi avg of 10.44 in 14 postings Andi Gutmans avg of 10.22 in 22 postings Markus Fischer avg of 9.42 in 5 postings Wez Furlong avg of 8.97 in 4 postings - Sascha