They send you emails if you bought one in the past. Although I’ve noticed I get the emails about 2 days after I hear about it here. The “newsletter” consists of emails announcing 1) new bundles, and 2) if anything is added to the bundle. I don’t recall getting anything else. So a couple of emails every few months. I AM thankful for them, as I wouldn’t hear about the bundles except for the emails or people like Jophiel.
The username should have given it away for you.