Controlling the money supply proved far harder in practice than in theory (notably in Britain in the 1980s: Mr Friedman grumbled that the British authorities were going about it in the wrong way).
Maybe you need to do something different every day, so if you break down your revision into small tasks, and allocate them to specific days, there's more incentive to tackle them.
Some are turning to the internet, which is cheaper and offers concrete measurements like click-through rates—especially important at a time when marketing budgets are tight.
The common factor that links these very different personalities is their single-minded devotion to repeatedly creating specific kinds of upsetting situations. Why would anyone do such a thing?
For any behaviour to be defined as addictive, there have to be specific consequences such as it becoming the most important activity in the person's life or being the way they improve their mood.