I mostly stopped minifying my assets; as these benchmarks show, by far the biggest size reduction is in the gzip compression; for example lodash goes from 543k to 97k by just gzipping it, which can be reduced further to ~25k but that's actually quite a small saving compared to just the compression alone. And even on very slow connections 50k doesn't take too long to load.

The reason I don't really like doing it is that it obfuscates the code. Happened to discover a bug in production (which may not be easy to repro)? A lot easier to examine that if your files aren't minified. It also allows users to examine the scripts if they encounter bugs, which I've done on a number of occasions. It also simplifies the entire build process.

I know about source maps, but many people don't ship them and it all seems quite complicated for very little savings.

When I do minify, I usually just have a little script to remove the comments, which is often the biggest win with the smallest obfuscation.

I suppose that if you have a lot of JavaScript (>1M) it has more value, but in a lot of cases I see people minifying 100k scripts for little benefit "because that's just what you do".

My application ships a small 3K script people can add to their website which isn't minified on purpose (imagine being able to inspect what 3rd-party scripts do exactly!); IIRC minifying it would save 500 bytes or something, but I've had quite literally dozens of people ask me "why isn't it minified?!"