I haven't read all the thread but noticed that Helen says she is leaving Gransnet because she doesn't agree with some of the posts she has read on this and other topics. She, in particular, took offence at coolcoco's comments.
The vast majority of posters on this thread have made very mild comments re this topic but obviously some people have different views. I am always sad to hear about anyone's diagnosis of a horrible illness but I tend to agree that there is already too much coverage on this issue.
If you find a site that absolutely mirrors all of your views and values, I should think it would be very dull - and actually I think it would be rather sinister. Sometimes I believe we need to listen to views that are not in line with our own, however annoying or distasteful they may feel to us.
Also, self-censorship often occurs when people are afraid to voice their honest opinions because they may be criticised, ridiculed or ganged up on. This is how authoritarian leaders seize more and more power until almost everyone remains silent.