On Wednesday 05 November 2003 10:35 am, Jason Clinton wrote:

>  Over the last week, there has been a great increase in threading breaking.

Threading is not a supported feature in eMail - it is a feature supported in 
some Usenet Newsgroup software.  There is no consistent, reliable threading 
system for mailing lists.  Some clients are able to simulate threading by 
guessing subject lines and using non-standard X-headers, but these may not be 
consistently replicated by all standard eMail clients.

It would be far more of a contribution to readability if users were to use the 
standard, customary, and universally accepted method of quoting previous text 
using the ">" character instead of inventing their own methods using 
indentation and HTML text attributes than bitching about the failure of YOUR 
software to simulate a feature that's not a standard part of eMail.