I still use CFML today, albeit a fully open source rewrite of it. It’s insanely productive, even if it doesn’t tick all the modern enterprise programming boxes.
I used it back in 2010-2014, and made some pretty nifty webapps to manage a tournament with brackets and live scores. I thought whoever designed it was bonkers, and the ones who bought into it, even more bonkers. But Ben Nadel showed me the way, bringing some sanity to the language.