I think you’ve bowed out of this, so I don’t want to belabor the point, but notice that the IRS didn’t catch trump out on his foundation shenanigans (all of which appear to be lies) or his claimed but distinct lack of charitable giving. Tax returns would flesh out those sorts of issues that the IRS doesn’t have the time, interest, or expertise to sort through, but journalists and other researchers do.
I’m in favor of pulling all the available threads on trump’s already tattered coat of governance. I want him to feel the cold and rain all over his corpulent frame.