What special "wrong thing" can root do? There might os level files that only root can edit or delete. I don't care about those. I can reinstall the os anytime if I should ever mess it up. All the value is in my data.
>>There might os level files that only root can edit or delete
>>I can reinstall the os anytime if I should ever mess it up
>>All the value is in my data.
If you want an example of something that could cause lasting damage, it's probably pretty easy to put your Apple product into a non-booting state by fiddling with NVRAM or PRAM settings as root. I'm not familiar with them off the top of my head, though.
If you were running your web browser as root, and a malicious website used a vulnerability to drop some malware on your system, then it would have complete power to do what it liked without needing to escalate privilege using another vulnerability.