Comment 56 for bug 885525

As far as the workarounds on comment #47: I ended up preferring #2 because #1 will remove [Gmail]\Trash from other IMAP clients that don't exhibit TBs behavior. In my case, this created a problem with my iPhone and it attempted to created its own Trash folder.

Workaround #1 seems to work for now with the exception that I cannot access the [Gmail]\Trash folder from TB. I'm not sure how this influences Shift-Delete behavior since I don't usually use it.