From the FAQ "As an example – you might have £500 to lend and someone else needs to borrow £500 to buy a dishwasher."
I see two problems with that as an example. Firstly dishwashers generally don't appear to cost that much - a quick google finds prices between £170 and £420, though I suppose a sole trader running a restaurant might need a professional grade dishwasher at a higher price. Secondly, apart from the hypothetical restauranteur, dishwashers aren't an emergency purchase, and people shouldn't be borrowing at payday loan rates for non-emergency purchaeses (or at least non-time critical purchases - I've seen it argued that a child's birthday treat or present is justifiable).
Better examples would be cars (for commuting), CH boilers (in winter) and rental payments.