I totally agree with your sentiment but I do want to add that adding code can be useful and make it better even if you're not adding functionality. For example

I totally agree with your sentiment but I do want to add that adding code can be useful and make it better even if you're not adding functionality. For example, while it may be "cool" to turn a straightforward loop into a complicated one-liner (which would be "removing code while retaining functionality") that wouldn't necessarily be a good thing. The longer, more straightforward code is likely to have a lower maintenance cost.