I received several automated emails at an early hour from several data brokers (e.g., Spokeo) asking me to confirm an opt-out for my email address and name. I did not request these, but did so about 2 years ago from most data brokers, and accidentally clicked on one of the links. The originating email address as well as the domain/IP from the email server look legitimate and the links go to the appropriate domain.
I am somewhat concerned because it happened within a short period on several brokers that ostensibly are separately owned, suggesting a human may have done this manually. On the other hand, it seems more strange the malicious. Is there any reason a malicious third party might be doing this?