It seems like a potentially dangerous process, could screw up permissions for all files and apps. I'd really like to change my short name (the name of the home folder), but I'm trying to weigh risk vs. reward here. Anyone been able to do it successfully, or had any horror stories? (Here's Apple's guide: https://support.apple.com/en-us/HT201548) I might be getting a new MBP soon, so I might just wait till then and create a new user from scratch. Thanks.