It’s most likely drip marketing systems at work, and no human was ever involved. They are just systems that respond to certain triggers, such as “read 3 emails

It’s most likely drip marketing systems at work, and no human was ever involved. They are just systems that respond to certain triggers, such as “read 3 emails without answering”. So right now you’re hindering the algorithm of making these decisions, which leads to more generic emails. Consider it the email equivalent to blocking cookies. :)