1. When I am logged into the site, I don't see my username anywhere on the homepage. The header displayed on the homepage just says the word "Hi" (see screenshot), as opposed to saying "Hi, <username>" (or something like that). I also checked the "Meta" section of the page (in the footer) and the avatar area of the sidebar (which is hidden by default). More on the avatar area in #2...
2. The "Edit Profile" link in the avatar area of the sidebar isn't styled like the "Managed Ads" button next to it (see other screenshot). I don't know whether that's by design or by accident. I was surprised to see it that way. That area appears to me to be a little void. Maybe, in addition to showing their username, that area can contain an admin-defined welcome message, or some quick stats about the logged-in user such as # ads posted and member since <date>.