Hahaha, I'll certainly keep it in mind!
With regards to the bug:
We've spent some time trying to find the cause, without success.
But to be honest it hasn't been high on our priorities list.
However, we'll be switching over to a completely new emailing system in a few weeks time, so this will absolutely be resolved at that time.
Thanks for the detailed report though, if I find some time this week, I might take another look at it, because I can't stand the fact that this has evaded us for such a long time now.