As the commit message stated, the current method (of dropping just the right file in a usually hidden part of the filesystem) is fairly user hostile as it is.
Extensions exist which make this significaly friendly to all involved, such as Stylish.
> As the commit message stated, the current method (of dropping just the right file in a usually hidden part of the filesystem) is fairly user hostile as it is.
Right, there should be a basic UI setting to do load an specified stylesheet as the default.
That doesn't excuse removing basic functionality expected of a user agent out of the core and requiring an extensionto provide it at all, especially since that requires reducing security (by extending the number of trusted parties) to use that basic function.
"We didn't expose this basic function well enough by default" is a good reason to improve the UX related to the function, its not a good excuse to make the situation even worse.
Extensions exist which make this significaly friendly to all involved, such as Stylish.