You can sort of do this now. Click on the author's name beneath the title of the article. In most cases this will take you to the profile of the blogger (or even commenter, like yourself). Then select "Content by xxxx"". For better or worse this will show you all the content by the said person, but the blogs themselves are quite obvious in the list. I bookmark this URL in order to follow a particular person. One other drawback is that it only lists by month, so to scan through all the content for an extended period can be quite tedious especially if you are looking for a partucular article. I suppose you can use the search in this case.