Won't stop spamming me. I've received many emails...

Won't stop spamming me. I've received many emails from these folks, all of them not relevant to my skillset. Each time I receive one I click the Unsubscribe link which hasn't worked for at least 7 months due to a bad cert on the site. So I replied to the email about 6 weeks ago to let them know and to ask them to remove me from their list, and nothing. Just got another email today, so I'm going to report them to the FTC. If they can't even keep this incredibly simple thing straight, why would you want to work for them?