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
Megabot#33 
@benjojo you and me both, i wish i could lock the filter columns since I'm almost never touching them