Yup. Who are these “taxpayers” requesting that? The IRS commissioner? Moochelle?
You probably nailed it, Moochelle or Barry I guess. Most individuals who pay taxes currently use the standard deduction so how much they give to any charity is immaterial to the IRS needing to know how much everyone gives. No, I am not providing my SSN to any third party so the IRS can monitor my activities, it is no business of theirs, period.
This is the major problem of government, once they get involved in anything, they see a need to compile info. Today if you sell a home, they want the SSNs of those buying and selling, I guess, so they can monitor the transaction to see if you pay your taxes. F EM. It is a voluntary system, a system ceases being voluntary when they hold a gun to your head and say give us the info up front.