Down at the pmail warehouse, I’m scuba diving in my Incoming bin and CCing people like a dervish. If only I could find time to do some actual work.
Short version: create a label (like ‘aaDelete’), enable keyboard shortcuts, use ‘l’, then label the message aaDelete, then ‘k’ to go to the next message. When you’re all done, select all messages labelled delete and then delete them. It’s sort of like a second Trash can since Google won’t make the first one work right.
Arrgghh! You try to access an IMAP account via Thunderbird and it just won’t work. Don’t despair!