I love "Hoarding" programmes too, and you are right that they are always presented as being unclean, whereas I know the truth is more nuanced than that. I too have struggled with how to help a neighbour who hoarded. In the end, I didn't. I just accepted her as she was, and she was the kindest and most gentle soul. There is a fabulous course on Daily Om by Stephanie Bennett Vogt called: "A Year to Clear What is Holding You Back", that drip feeds suggestions in such a gentle way. It COULD help. But I chose not to share it with my neighbour in case it offended. It is very hard to know how to help, isn't it?