OP, the members here already have enough money for themselves both internally and globally, don't get me wrong about the replies from members here, Donation is not good, if it is not sincere, maybe you want to give, not necessarily other people agree with you, Donations given must have a strong reason, members here have experienced bad things about donations, it is precisely those who receive it who are not entitled to receive it.
I don't speak for all moderators or staff users, but I've said personally I'd feel a little weird about receiving a donation for the reasons stated above. However, I don't think I agree with you that donations need to be for a strong reason, there's plenty of examples of people donating Bitcoin for those that have been helpful answering their questions. Albeit, probably much more rare these days, a few years ago a lot of users had donation addresses.
I do think its a great idea in general, but I believe there are far more deserving things to focus on. Obviously, other moderators might be in a total different position to myself, and might actually have a need for the extra money. I appreciate the gesture nonetheless.