I also agree with this one hundred twenty percent. It is only too true that we all require slightly different settings to feel comfortable. But:
Extensions, userscripts, and various other "Band-aids" are all very well, but making lots of us use multiple third-party resources to revert the various poor design choices made by Stack Exchange is...not great.
It would be great if we could add this as an option in user preferences. Being able to customize the settings, without various userscripts and Chrome extensions cluttering my browser, would be wonderful.