Consistent use of the ignition switch, to shut the bike down, may lead to the development of a whine in 5th gear in pre-2010 models, high operating temps, and premature cupping of the front tire (Dunlop specific). The severity of each of these issues depends, of course, on whether you run synthetic or dino oil.
When brought to the attention of the local dealer service manager, they usually emit a bitter, barking laugh, reminiscent of a seal having its prostate examined.