Most people operate on feelings, not reason. Thus it is most likely out of shame born from supplementing for lack of willpower by using drugs.<p>Eliminating sugar from diet, shifting from carbs to fats or intermittent fasting will all have a greater effect than these drugs. But they all require some willpower at the start; Discipline, which people seem to lack.<p>Alternatively, a more rational take is to consider "crabs in a bucket" mentality. Awareness leads to not publicizing your personal goals and how you're working towards them.