Another way to look at it: This hypothetical person created their 'system' because they valued their connections enough to establish a way to maintain them. And

Another way to look at it: This hypothetical person created their 'system' because they valued their connections enough to establish a way to maintain them. And they specifically added you to the finite list of people they don't want to lose touch with. So it is genuine—it's just a reminder, we all need reminders once in a while. Now, if the person isn't actually your friend, but a professional contact (e.g., recruiter) who just hopes to extract value from you someday, then those guys can go jump in a lake.