Comment by Griffinsauce

Most of those things are easily analysed in-house or with much less invasive solutions than GA.

> general demographic of their audience

This is not useful to improve a product unless combined with proper research into the demo, which most people don't do. They just apply their own biases and make their product _worse_.

So many people are making all their decisions based on shallow data like this and never do a simple usability test that yields massively more impact.

Put differently, people use this data to try to focus in on specific traits of their audience before even testing that their software works for "humans".