Did you read the whole post?

"-You don't have to take personal pictures of yourself or others/other things that disclose information about you, your account here can remain anonymous if you want it to be"

There are ways to verify you are the persona you say you are without showing your face or other personal stuff that would give your anonymity away. If you have other anonymous social networks, by using them and adding the word steem or linking to your steem account works as verification as well.

The whole point with verifying is so we know you are real. No need to give out personal information when verifying.