I had enough crazy from health visitors that I declined them eventually.
One confidently walked in after I had my second child , my first son had died a few years before, and said "does he look anything like your dead son?", and then said I clearly had PND when I kicked her out.
After my next child I had gallstones and was put on tramadol so I decided to stop breastfeeding as they said my baby woukd be lethargic, but not harmed, the HV told me I was making a choice in my own best interests and not the interests of my child (even though I was literally collapsing in pain at points).
Another reported me to SS because I had a "weird machine" attached to my child that she had no knowledge of and had never seen before. It was from the hospital and part of a study to do with a health condition. In the report about the medical equipment she also stated that I hadn't dusted under my TV, I had one of those annoying high gloss TV stands that need dusting every 2 seconds. SS never even visited, just called and I explained about the equipment.
I think they were all nasty to me because I reported the first one and she had to undertake additional training and apologise to me, but she was well loved by her colleagues, so I just declined them after that, they never brought anything useful to my life anyways.