How Amazon do what we’d like people to do and it is not a good thing

If you buy books from Amazon, you have probably noticed how they frequently use your forename when giving you information or asking questions.Now with people, if you want o be friends it is nice to use their first name a lot.Amazon must do it because it will make us feel they are our best friend.Well, it is good to be able to find books we want but Amazon is a business.The more friendly they are the more we are likely to buy and return to their site.So tey are using social psychology to manipulate us/Advertisers used the work of Freud, his ideas about the Unconscious.His nephew was one of the first people in that field.
And propaganda in wartime is a similar type of activity.We are made to feel safe by someone who gets the right image across.In reality it may be a mistake.
It is hard to resist the kind of way  Amazon addresses us.