https://www.youtube.com/watch?v=NjVugzSR7HA for the curious.

Hahaha

I remember the paranoia involved in that, since someone couldn’t earn you unless you’d sent them a message. If you and A were warning each other, you’d stop replying to A, but A might recruit B and C to start a friendly chat with you and then warn you when you’d responded enough. So you’d get a seemingly unrelated “hey what’s up?” and try to figure out if it was safe to talk to them.