"My account" is innocent enough, compared to some other real life examples. And it sometimes doesn't come from marketing, but from development too.

I've worked in company which added a "funny" codename to everything: features, libraries, sprints, sections of backoffice interface. I don't know, maybe for some developers it makes things more engaging, for me it added a ton of unnecessary stuff to memorize or look up.

Also one of the reasons I don't like AWS. You really can call a router just "router", virtual machine "virtual machine" and so on.