I've done the same, heated in the moment. Basically our two most senior devs quit, so a large burden shifted onto me, and I was suddenly the most tenured dev on our team, with knowledge of systems no one else had and could not even easily get since the others (and others before) had quit. But curiously they promoted the new guy instead of me. Ok fine... I told my boss, an arrogant VP at the company, that I should be paid x amount for my increased role and importance to the product. He got back to me 2 weeks later (took his time with this), and said sorry. Quit on the spot. They had to completely overhaul their roadmap and soon after that team folded, got absorbed into another, the VP got fired, and I got a sweet new gig. The execs were too thick headed and full of themselves to see that my quitting would cost them exponentially more money than a relatively modest salary increase based on my increased role. Not a single regret.