You are not your iPhone. You are not your tweets. You are not your checkins. Quitting a service is not suicide in any meaningful respect.
Relatedly, the construction of identity around relationship to technology is one of the dangers of spending your time with the tech crowd. If you hang around the Valley all day and TechCrunch is your only source of news, you might get the impression that this stuff matters. At the end of the day, its still bits.