Earlier quoted context omitted.
Oh sure, if it's hard to unsubscribe then I will totally use anti-spam mechanisms to block that as well. I am talking about the case where people engage the spam button for email that they (1) can unsubscribe from using the standard one-click unsubscribe link at the bottom of the email, and (2) have either explicitly signed up for or that is otherwise from a legitimate sender that complies with your local laws and wi…
It's not my duty to click an unsubscribe button if I didn't subscribe in the first place. Companies like LinkedIn decide logging in gives them consent to start spamming you. Name a single company besides maybe amazon that if you place an order, they don't automatically put you into their marketing emails? It's all spam. By definition. I didn't ask for this, you are sending it to me. I don't care how easy you make it…
Then it's also not your duty to click the spam button??
Joking aside, that's not the kind of email I am talking about. Spam is spam and should be flagged as spam. If you get benign email that complies with all the anti-spam legislation but you just don't want it, then use unsubscribe.
Using the spam button for things that are not spam muddles the data labeling and increases spam rates because the email service operators can't use it to tell what is actually spam and what is a frustrated (or perhaps simply ignorant) user.