When I look at my Inbox, emails from companies (1) who got my email address directly from me, (2) include an unsubscribe link that doesn't require me to "login"

When I look at my Inbox, emails from companies (1) who got my email address directly from me, (2) include an unsubscribe link that doesn't require me to "login", and (3) honor the unsubscribe request ... are the least of my problems. We can disagree about whether Weebly's tactics are effective (I imagine they might be, for their target audience of less-technical users), but I don't understand the anger. This is very minor on the scale of email "abuse" that happens to all of us daily. Use the unsubscribe link.