"Bigserval Spammers"

You might be unlucky enough to be on the list of spam addresses that they have bought for their ad campaign. I was.

This means that you will receive multiple passive-aggressive junk mails from them. Typicall some prat called Mathew Granner.

Not only are the emails spam, but they don't have an opt-out or unsubscribe link. The simplest things to do are
a) write a review
b) report them to spam assassin.