If you think this sucks, have a go at deleting your Facebook account.
Worse... WhatsApp. When you change phone numbers it prompts you to notify all your friends. But when you delete, it just keeps letting friends message you without letting them know you aren't there, and all you get are notifications that people on WhatsApp are trying to contact you -- but it won't tell you anything more unless you sign up again. Before I had WhatsApp, people couldn't message me through WhatsApp, but once you had it, there's apparently no way to delete it. What if I change my phone number? Is any number in the system just forever in the system. Cool, cool cool cool.
Worse... WhatsApp. When you change phone numbers it prompts you to notify all your friends. But when you delete, it just keeps letting friends message you without letting them know you aren't there, and all you get are notifications that people on WhatsApp are trying to contact you -- but it won't tell you anything more unless you sign up again. Before I had WhatsApp, people couldn't message me through WhatsApp, but once you had it, there's apparently no way to delete it. What if I change my phone number? Is any number in the system just forever in the system. Cool, cool cool cool.