Feel Free to post. It is absolutely free to post with out an account. Just select anonymous and your post will be submitted for review then it will be posted. The reason for this is to ensure that spammers are not posting here and that your comments are acceptable to the subject matter at hand.
So to all the visit, if you do not have an account you can select under the comment block,"comment as" just scoll down to the bottom and select anonymous and your comment will be submitted and reviewed.
Thanks for your comments.