collection of userjs files for various sites
The various third party sites for sharing these tend to be sketchy or poorly maintained. I'm putting mine up here to share with others.
Anyone is welcome to use them or contribute changes.
There are multiple extensions that work with these files. I recommend and use Greasemonkey with Firefox. Though all of them have had bugs intermittently since the Quantum engine update, it is currently the most reliable.
Don't use Tampermonkey. It is closed source and possibly spyware.