Most people don't approach discussions with much psychological awareness, not to mention online psychology which can be a study in itself. Therefore this is pretty much inevitable with online communication. Some people will continue to believe in the primacy of challenging specific beliefs rather than frame it in terms of peoples state of mind. While it certainly raises questions in the minds of some, a lot of people who benefit from that information may do so not because they view these forums as a place for social interaction, but they just come to get the information and thought about it themselves. In that case the work of addressing beliefs may be relevant, but you couldn't say so-and-so got this person out - in fact that kind of social interaction may be counterproductive.
Strictly from an informational perspective, then, you gotta wonder what is the signal to noise ratio when it's presented in terms of forum discussions? While some may be heartfelt personal experiences and the reader may identify with those views, at other times it might just drown out the essential info too.