I ended up publishing his works almost by accident. First album as well as 10" was supposed to be on other labels. It took long time for those labels to finally admit it can not be done. When FA displayed it can be done, 7" and second album came directly to FA.
My experience, as publisher of most of those works is that people listen it for wide variety of reasons. One also has to understand that not everybody in noise speaks so fluent english, that topic of music would come very clearly in-your-face. It may be simply musically good and that's that. However, of course, content itself matters but people from different countries react on it in different ways. Lets say Japanese fans, I recall everybody being very positive about it. Ethnocentric perspective over there would barely raise eyebrows. Albums caused plenty of discussion, and even surprising support from highly surprising characters. People may assume its the east european meatheads that listen this stuff, but reality may be notch different.
Albums are stylistically quite different in lyrics. Also musically Brethren established very unique style where vocals are short shouted patterns arranged into kind of mechanical rhythmic pattern. Whitehouse did the vocal cut type of thing in their 2000's works, but it is not like this. Brethren used rhythmically pronounced lines in combination of loops and sound fragments in unusual way nobody else was doing. I recall talking to one long time heavy electronics label guy who mentioned could care less of the lyrical content, but stuff itself is interesting and new. I am sure albums did sell also for people who could care less for sound, and just bought it for the content. Thing about Brethren is curious, that unlike some projects on this orientation, it is never vulgar or obscene. Perhaps first album still has small traces of that, but later on, it is intentionally almost academically dry language without any offending vocabulary. As seen in messages, some people will consider this as "lack of humor".
Project ended when all was said and musically all was done and artists felt it would be just repeating more of same and therefore not perfectly sincere. Very much like Con-Dom, when final release was done, things completed, that was that, and in finest tradition of industrial culture, "mission terminated". If I happen to get permission for CD represses some day, I'll surely get them done.