Blocking someone on Kik Messenger will not delete you from their contact list.
Messages from the blocked person will be hidden and all chats with this person will be deleted. Also, when the blocked person tries to send you a message, they don't know that they are blocked and their message is never delivered to you.
However, previous chats, your profile picture, as well as changes you make to it will still appear on the blocked person's app.
When a message is sent from you to another Kik user, the message exists on your device and their device separately. Once Kik servers have relayed the message, they delete it from their system. Blocking a user will not delete the messages that have already been delivered to them.
Kik Messenger was the first product produced by Kik Interactive. It is a cross-platform, customizable, fast-operating messaging app available for most smartphones including iPhone and Android based devices. The first goal of Kik Interactive was a music sharing app exclusively for BlackBerry. Along the way, they accidentally created the breakthrough app Kik Messe.
Communicating by using an instant messaging (IM) program has some of the same security and privacy risks as e-mail, but there are a few dangers that are unique to IM.
Here are 10 tips for safe instant messaging, featured on Alibaba.com.