In my KH in Czech Republic as far I remember when JWs were legalized, the box was always at the door and was visible to everyone. Since my mom donates 100 Czech crown (only green bill) which is the lowest paper denomination, everyone could see what she donates. ($1 USD is 20 or so crowns, so she put about 5 dollars every week). 20 years ago she used (and I did as well) to donate 50 crowns every week. Last year and this years she repeatedly told me that elders and elderettes whined why she does not donate more, since she does not have any significant expenses (I paid her house off, thus she does not pay mortgage nor rent)...
She does not want to donate more, because the district overseer drives expensive car, ask local congregation to take him and his b.tch wife to dinner, and ask for other field expenses. She thinks that he is lazy and takes advantage of congregation. She worked for 50 years, and does not feel to subsidize anyone living standard.