macOS now adds special permissions to standard folders including your Home folder, and its special folders inside it. This explains those ACLs and how to fix them.
Home folder
Can now explain what is wrong with a file’s permissions, and can scan any folder of you choice.
New and more reliable version of a tool to check whether Home folder permissions are correct or causing problems.
I’m very grateful for the many comments which you’ve made recently about my free utility to check permissions, […]
Is there a better way to reset or repair permissions on your Home folder? Try a more targeted and controlled solution here.
With Apple’s SSD prices so high, you may for the first time have less internal storage in your new Mac than your old one. Tips to help you cope.
Summary of the hidden folders and files you’re most likely to encounter at the top level of a volume, and at the top level of your Home folder.
Having problems with preference files? Here’s a step by step guide to solving them, including a new version of PermissionScanner.
Repairing permissions on your Home folder is a blunt tool which could cause more problems. This tool looks through for potential problems, letting you fix them one file at a time.
Why we can’t repair system permissions, and some pitfalls and promise in the new technique of repairing permissions on the Home folder.
The Eclectic Light Company 