I dunno, history has shown that the negative people will win out unless you filter them out.

Most unfiltered communication channels online are known for being horribly negative, not to say there isn't positive content, just that it is minor.

Unfortunately the negative posters have more to gain. By putting down someone they get a minor lift up in their own self-image, while boosting someone does not provide nearly such a strong reaction.

Adding user names can help, as your history becomes public and scrutinizable, allowing you to be proud that you are positive.