Not disagreeing, but why is this a good thing? Apart from that it's fun, are users really expected to be able to improve their browsing experiences with custom CSS?
User stylesheets are supposed to be applied at a precedence level below the page author's style, so any time the page author did not specify a style, the user's style can be used as default.
Browsers should have made this an easily accessible feature, but they seem to instead like to remove access to it. Think "Developer tools window", but persistent.
Actually, yes:
https://www.w3.org/TR/CSS2/cascade.html#cascade
User stylesheets are supposed to be applied at a precedence level below the page author's style, so any time the page author did not specify a style, the user's style can be used as default.
Browsers should have made this an easily accessible feature, but they seem to instead like to remove access to it. Think "Developer tools window", but persistent.