There should have been a thankyou! How rude of that woman not to be grateful for a donation.
Just to put a different spin on it....my mum works one day a week in a charity shop. She started working there as she had been ill with cancer and wanted to put something "back in" to the wonderful medical people who had helped and supported her.
She looks after my sister's children 3 days a week, no charge, and chooses to spend one of her free days working in the charity shop. If the other staff there see something they think my mum might like to take as toys for her grandkids to have in her house, they put it aside. They either mark stuff down, or give it her for free if it's not in great condition.
My mum takes them back to the shop to be sold on as normal when they're finished with by the grandkids (in just as good a condition as when my mum got them, and probably better as my mum cleans them,and puts fresh batteries in)
From my own point of view, I never ebay anything, it all goes to my mum's charity shop: all my kids' old toy, books, clothes, cots, moses baskets etc - and all in perfect condition. Same goes for the rest of my mum's family and friends' stuff. For that reason, her colleagues at the shop now refuse to take any money from her on the odd occasion that she takes a toy home, as the stuff she takes in from all of us has raised plenty of money itself over the years.
My mum is definitely not a loon, she could easily get a paid job in a shop, but doens' need the money particularly and so feels she'd rather give her time to a worthy cause.
Maybe she is one of those "righteous "I'm doing good" older ladies who are an absolute nightmare" that you are referring to, Jackaroo?