(Principles are subjective.)
1:2 Adapt design for those who frequent the website.
Here I have put Labels first, not the Profile part. Why? Because frequent visitors don't care about seeing the same Profile each time they load the page, so it becomes a permanent waste of space. Newcomers don't care who you are, it's the content that will matter most of the time. The Profile is the last thing anybody would care about, in common sense statistics.
Labels are put above all because they function as search-queries based on the characterstics of the posts the reader may be interested in. All the rest follows. (But, of course, in the way commercialization is done, it is all about screaming to get the attention of the newcomers.)
2:2 Remove redundant stuff
I removed the header widget because it takes up space and is of no frequent function, other than wasting space. Of course, some websites use the header-body-footer design so that the header acts as a common way for a visitor to navigate to the main page.
See webdesignpractices.com by Heidi P. Adkisson for some statistics (2005).