Anecdata from a sample size of 1 (me): 7 of 10 times the unsub functionality works. The other 3 times where I do end up confirming that I am a human on the othe

Anecdata from a sample size of 1 (me): 7 of 10 times the unsub functionality works. The other 3 times where I do end up confirming that I am a human on the other side, the "Mark as Spam" functionality of email providers - that kicks in after a couple of weeks.