On Lu, 28 mai 12, 18:47:44, rjc wrote:
> 3. Messes up threading in email clients.
... in *inteligent* email clients maybe
Unfortunately MS Outlook
threads only by subject, which is very annoying when the subject gets
even the slightest change.
 having to use it is one of the unpleasant parts of my job.
Offtopic discussions among Debian users and developers: