Shouldn't you send such communication by certified mail?

A company behaving that shady will have no qualms to claim that they never received your communication and a copy of your own mail may not pass legal muster.

Not a lawyer, etc. But I, for one, would be super paranoid with such creeps. Even if it costs me a few bucks.

I did not realize this happened, glad to see this post raising awareness, I sent my opt-out email from the new TOS

Note they sent it out on Thanksgiving day as well, which would be the most likely day that people would miss it.

I received the email on December 2nd.