Allow comments on Oracle blogs

Most Oracle blog articles are excellent. But there's no way for us readers to make comments. If there's concern about decreased signal-to-noise ratio (not necessarily due to bad comments, but possibly irrelevant ones, e.g. too many "thank you" messages), the blogger can filter first and only allow those comments that truly add value to be posted. For example, is clear and useful. But I think I have another way to achieve the goal so I'd like to post it as a comment. But the webpage has no place to add a comment.

Alternatively, can we have direct contact to the authors, either by email or through a web interface? Thanks!