"Why has no one been assessed a one-stroke penalty in 16 years?"

Doug Ferguson tackles the recent slow play grumblings and offers a few very interesting points:

As slow as it can get on the PGA TOUR, why has no one been assessed a one-stroke penalty in 16 years?
 
Or been disqualified?
 
“We’re more intelligent than people think we are,” the ever-sarcastic Paul Goydos said.
 
By that, he means slow players tend to play faster when told they are on the clock. Fulton Allem once compared this to a state trooper who pulls over a motorist for going 100 mph. Instead of writing a ticket, the trooper says he will follow the driver for the next five miles to make sure he doesn’t speed.
 
“You have to be crazy to get two bad times,” chief rules official Mark Russell said. “People don’t get one bad time.”

And this...

Drug testing starts in July. How will anyone believe the tour will suspend someone for one year and fine him $500,000 for a doping offense when it won’t assess a one-shot penalty for taking too long with a 5-iron to the green?