This small, but important detail, immediately stood out to me. The ability in SaaS to track your users with precision is welcomed by many (most?) developers. Knowing your most active users is regarded as an important data insight, and developers are eager to extract that data.
For me, I find it unsettling so much user behaviour is recorded through online apps. Not only is this app tracking seen as natural among developers, it's eagerly embraced.
SaaS promises customer tracking on a level never before achieved, and many developers seem happy to see it continue.