How to delete a ICQ account?
The description of the service:
ICQ is an open source instant messaging computer program that was first developed and popularized by the Israeli company Mirabilis in 1996. Users could register an account and would be assigned a number, like a phone number, for others to be able to contact them. ICQ was the first stand-alone instant messenger and the first online instant messenger service as such — while real-time chat was not in itself new to the internet, the concept of a fully centralized service with individual user accounts focused on one-on-one conversations set the blueprint for later instant messaging services like AIM, and its influence is seen in modern social media applications.