Yes there is software that can un-blur a face, but it also depends on what you have done to the photos before you blur them lol. I won't elaborate, but you can distort them to the point of not being recognized should someone use this software. I won't elaborate in public, but photoshop is your friend in these cases.
I won't do the side shot because as "true-whatever" stated, it won't do much good in being discreet. I provide where I live, work, and go to school and it's not hard to figure out who I am. I don't mind if a guy sees my face after screening, but I won't send him those pics via email. I will likely send him to a site not associated with any escort services and let him view me there...just ask DED.
![Smile](http://www.eccie.net/images/smilies/smile.gif)
That way if he decides to copy the pic and say, "Look ya'll this is London," there is no proof that the girl in the pic is an escort.
I don't know about anyone else, but a dime is not worth ruining my future in the long run. I know I am losing business over it but I don't much care. Many men that I see have told me they would never take an escort in public who shows her face for fear of being outed with her. Most of my dates are multi-hour and half of that is in public. It only takes one time.