HUH?

I'm sure you've seen the faces.
Those very bizarre looking faces.
The ones that look like a young terrorist, a cranky old man, a woman with puffy hair from the 80's.

Those faces.
That gracefully adorn the ads online telling you:
OBAMA BACKS EDUCATION! RETURN TO SCHOOL!!!!
MORTGAGE RATES AT THEIR ALL TIME LOW!!!!

Who. What. Where. When. and Why?

Who?: I'd like to know the marketing company that generates those ads.
What?: exactly is their point?
Where?: Do they find these pictures of people
When?: Are they going to stop with those bizarre, and often times, scary, faces?
Why?: put pictures up of people that unfortunately you'd prefer not to spend your day with in a classroom? Or a bank with the Cranky elderly Loan officer all crinkle face up?

Lastly,
Are those images of actual people posing? Or are they intentionally making the images a bit more exaggerating to generate more chatter (LIKE I'M DOING HERE!!), about the ads?

I mean, huh?
I just don't get it.
If you haven't seen those ads yet, now you will.
All the time.