benjojowhy why why the does Thunderbird let you sort by email subject, I have never wanted to do this and I always do it if I "miss" trying to open the newest email, and when you have a 100k+ inbox this little maneuver's is gonna cost you 51 years of CPU time
Lambda@benjojo I sort my emails newest-on-bottom and so I've never accidentally clicked the list header, maybe that's an option for you?