A lot of people donate to various causes quietly. They don't make a habit of making a posting when they do so. My wife has an aunt who makes an entry in a ledger every time she thinks she has done something nice for someone. I guess she thinks she'll be able to take it with her when she tries to get past the "pearly gates". This woman, by the way, is one of the nastiest b...... I've ever met. The first time I met her was at the wedding reception of my then future wife's sister, some 33 years ago. We were seated at a table of my wife's aunts, uncles, and cousins. After introductions were made, I offered to make a trip up to the bar and bring back drinks for anyone who wanted one. Her aunt looked at me with a scowl, and said "oh, I see you're a boozer. Joannie, you better get rid of him while you still can". I doubt her ledger will do her much good.
P.S. Personally, I find your posting of the names of those who you believe haven't donated yet, to be in rather poor taste.
Coming to you from the beautiful Oley Valley.