Hacker News new | ask | show | jobs
by AxisOfEval 4438 days ago
Many companies sell your email address when you unsubscribe. By unsubscribing you have established two things:

1. You are not interested in their product or service (Obvious)

2. You read your mail, and it is not a throw-away box. (Non-Obvious)

Unsubscribe and your email address suddenly gets commercial value that it did not have before.