Bots acting on the behalf of users should not be blocked but we have spent several decades treating bots (except for the googlebot) as bad.
Like if I want to programmatically unsubscribe from a subscription, why should I have to do it myself?
Like if I want to programmatically unsubscribe from a subscription, why should I have to do it myself?
(and for that 1% of the cases where the address is not a spammer and user knows it, they can just hit "unsubscribe" manually)