User experience is a broad term. People here generally think of speed, but in fact that can actually result in a worse user experience. I believe users react better to a loader that takes longer for certain tasks like calculating tax returns because they like to think the computer worked hard to get the best result. It’s not always black and white.

I have had to implement features that are awful for the users, but are required by law to have. Others to protect the business from liability.

I’m not saying doesn’t serve users as the original comment was “user experience” and was specifically mentioning JavaScript in terms of a presumably slow site. User experience is many things and all of them need to be considered. I totally agree that sites have gotten way to bloated, but the js community is recognizing that and trying to work on it, lazy loading and improvements to module bundling are going to help. I think the craze of tiny packages is coming to an end. Libraries post proudly when they have zero dependencies. As the community evolves it’ll improve, though some sites will probably continue to get worse as higher ups demand more features.