Returning to this discussion from a while ago: Back at the time, I said that I hardly ever closed tabs. But as I’ve started using the very convenient facility / trick mentioned in this thread, to send notes direct to a Tinderbox Inbox from any other application, I’ve suddenly seen the potential value of having a keystroke means of closing Tinderbox tabs. That is because the Inbox technique, and a related technique mentioned today for direct links to any Tinderbox note (in this blog post), both have as collateral effects the creation of a new tab each time they are used.
Closing those tabs now requires mousing around to the very precise little corner where the tab-close icon is shown. It would be more convenient and TB-esque to allow other keyboard ways to close them. Or, to put it differently, I now see a use case for more frequent tab-closing moves. (Or, a way not to continually create surplus tabs.)