Brian,
Like you I also suspect Sue has an agenda, more than one agenda perhaps, but most of the initial post is presenting available information and trying to put together an overall picture which is mostly reasonably balanced (IMO). Rather than condemn the facts and opinions presented it would be better to discuss them in a reasonable and reasoned manner, particularly the contradictory evidence, and also in a wider context comparing Walter with other source singers and their repertoires. This can easily be achieved by ignoring any kneejerk OTT reactions. Sometimes by throwing in one or two controversial opinions as Sue has done it can provoke a more lively discussion (but without getting personal or resorting or twisting what is being stated).