I can't--I have no standing in this case. Schiavo might be able to do so, particularly some of the more over-the-top posters who've stated as fact that he is motivated by ______________ (fill in the blank with an odious motive).
People are allowed to form opnions based upon the knowledge they have collected from various sources and apply that knowledge where they see fit. If everyone had to preface that by say, I believe, IMO we would have the courts system tied up with just slander and libel cases, and we would have created a whole new industry for the thought police.