As an amateur after a shoot I look toward to post processing. Using Photoshop CS6 working from raw file is a lot
of fun for me. And, on occasion, going back to old shoots that I passed I can find some merit to the image that I ignore
before and not having any client I can do anything I like, good or bad.
I understand that every one needs to make a living and that goes for retouchers as well.
But I wish MM could find a way to block them if I wish not to work with them.
I imagine that some photographer use them all the time because they find post processing boring or need an expert
to repairs shoots that have merit and are technically bad. Or get the result a client desires.
Film users and some famous one probably rely heavily one some of the darkroom magicians (who seldom got credited)
But MM is vastly digital!!

If you ever need help writing a retoucher post I can do it for just 10 bucks.