system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why do we blur someone's eyes on pictures/videos to keep them anonymous but can wear full-face ski masks with a cutout for eyes to hide our identities in person?
gpt
people who wear ski masks are trying to hide hide their identity in real life. you can't blur eyes in real life and you need your eyes to see so you can't cover them. eg, robbing a bank. how's a bank robber going to blur to hide their identity from people? 

when eyes are blurred in pics and video, the identity is being hidden for the viewers. it's a lot easier to throw a blur over the eyes than it is to put some sort of filter to cover a face. not to mention is more aesthetically appealing to view that on tv or computer.