For a while I was getting contacts from AWS pretty regularly. I was mostly ignoring them but they got annoying enough that I started replying with links to articles about Amazon's terrible labor practices. One recruiter replied that he would put me on his do-not-contact list. A couple of days laters I got another contact from the same recruiter, and I replied with the same links.

It's been a while since them and I have hardly heard a peep from them, but I suspect it's just a matter of time before I'm back on their lists.