Concerns around technology addiction have been on the rise recently, but people have been talking about Facebook (NASDAQ: FB) addiction for much, much longer -- basically from the service's inception. Many companies have been announcing various tools designed to assist users in managing the time they spend on their devices in an effort to manage the addictive nature of modern mobile devices.Meanwhile, Facebook has been trying to distinguish between time spent passively consuming content on Facebook and time "well spent," an ambiguous term that has been floating around for years.