About the @planes project, which has started gaining popularity:
Someone was inspired by the idea of PAWS and decided to launch a similar app with viral mechanics. The essence is to send messages to friends (although in reality you can just save them to favorites).
Firstly, no app can determine the number of messages you have sent.
Secondly, the connection to Durov is far-fetched. His name has been mentioned solely to add significance.
My prediction is that the project will not succeed. I won't even leave a link.