Acid Casualty? Interesting term for him. Very little evidence of Psychiatric Illness. Apart from anything else, even his family vehemently denied there was anything wrong with him mentally, and when he did see a psychiatrist as an outpatient the conclusion was he didn’t require medication or further therapy. Id say it was more likely he had a personality problem, now I’ve no doubt that may have been exacerbated by drug taking. But some people are just difficult and eccentric, and Barrett was one of those. And creative genius is definitely a matter of opinion….grossly overrated would be mine.
I wouldn’t call Walters a creative genius either, I just think Pink Floyd had better creative output once Barrett had gone.