Any reasonably serious blogger will post something about themselves for a variety of reasons. I am not sure we CAN get rid self introductions nor am I sure that we should, even if we could.
Rather, user verification probably needs to be taken more seriously. Far more serious than simply posting a selfie of yourself holding a sign in your hand showing the date. That is not really verification, it does NOT make the account trustworthy and it is reckless to indicate to anyone that it does. This is probably the old tradition that should be put to rest because it can easily be used to falsely give assurance about a user identity.
There are lots of techniques for verifying users, Captcha, multi-factor authentication, Email verification, you all know how Ebay and PayPal works... Bank Account verification by submitting a charge of .01. Steemit may wish to implement some of these features and others soon.
I agree with your over all point and hope to see it rectified.
The community needs to be careful about what they upvote. It should seem incredible that all the women on this site look like models! Think. In an average day in a city, how many people look like that? If it's too good to be true, don't upvote. And if they don't mak