I remember Mr. Trefus, and the council workers who dealt with him seemed very kind and caring.  I believe he had had a traumatic past - I think he may have been a refugee, so there were reasons for his hoarding.  I never watch Kim and Aggie, it would make me feel guilty about the standard of my cleaning!  However I do watch Grimefighters, and I am always amazed by the cheerfulness of those dealing with huge piles of rubbish and worse.
I do admit to having had to call out the pest control for a rat problem (not caused by piles of rubbish, honestly!) and the man who came was lovely and so cheerful - perhaps they are picked for their personality!
I do think we could do more for people with mental health problems, I am sure many people are lost in this world and do need more help than they get.
Carolyn x