We use jQuery and I've stopped feeling ashamed about it
I'll start with my tweets:
A confession: I have a web site that uses jQuery. An old version of jQuery, at that. It probably always will, because it works this way.
I could spend a bunch of time (as a non-JS-expert) to make my site use current native browser APIs instead. But there's no payoff for us.
I've completely given up feeling guilty about still using jQuery and not updating our jQuery versions. Our site is a tool, not a sculpture.
(Typical writing about this is eg here, here, here, or this blog entry by Laurie Voss that mentions it in passing (via). Running across Laurie Voss's blog entry is what pushed me into my tweets.)
Beyond the sin of still using jQuery at all in our web app, we're also still using an old version of jQuery (specifically jQuery 1.9.0, released in early 2013 and so now more than four years old). This whole issue has been nagging at me for a while and today I reached the point where I blurted out my tweets, which perhaps isn't the conclusion you might expect.
(Perhaps I should drop in the latest 1.x jQuery and test lightly to see if everything works, just in case there's some bug fix that matters to us that we're missing. But even that is hard to sell, partly because it's still a hassle.)