If it was anonymous how do we know it was him?
Imagine getting sued and being forced to show in court what a badass you are.
I would assume all donations would have to be reported to the IRS as well. You can’t get a tax break on donations if they aren’t filed. So they should know how much every citizen is donating unless they are being taxed and not reporting that, which is fine by me, but bad business on their end.