[moge]

like what? If you don't login then how do they know 'you'?

Are you saying that they should be able to know you via link hash? For single actions like 'confirm' or yes/no I would agree that it would be easier to not need to be logged in.

Can I ask you this, have you never not logged in and left the action not done? Or do you log in begrudgingly anyway?

[viraptor]

If I get a unique link and click it, it's me. You don't have to verify the login, because if I don't remember the password, I'm just going to reset it via the exact same email address I got the link from. Also, it's likely that if someone sends me a newsletter, I used a one off password for that site and I would have to do the reset anyways.

If the unsubscribe action chain is longer than setting up a new email filter - you're doing it wrong. Not the OP, but I do leave and add the address to auto-spam as soon as I need to log in / do something else.

[eli]

Except then if you forward that newsletter or message to anyone else, you've unwittingly sent them your login credentials as well!

[khafra]

Meetups I was planning on attending have been cancelled because it was too much trouble for me and the other 3 people also planning on attending to carry out all the steps necessary to RSVP on meetup.com.