When a huge website with many incoming links raises its PR from 9 to 10 you should not be surprised that two people express enthusiasm and one person expresses respect.
That would not be an issue if it were really coming from dmoz users. What I find distasteful is plugging your site on forums for your own benefit. Clearly those posting here are dmoz editors or staff. Other sites are not allowed to promote their web sites because it is against the policies of webmasterworld. Why should you be able to get away with it.