So what, if people enjoy having those, let them.

Wasn’t it Daffy Duck who compared Fudd with Nimrod? Bugs Bunny calls Yosemite Dam Nimrod.

Durex könnte hier die Werbekampagne des Jahres fahren.

No, you’re absolutely right. Hiding a message behind a login is essentially linkedin style click baiting.

I agree with you, but it’s easier for those companies to just do one option, rather than offer user/customer choices which would create additional effort both technical on the backend and legally.

It’s annoying, but from a data security point of view it makes sense, personal information like that is more secure behind the login on their website than in an e-mail in plain text.