Directly? Nothing. Indirectly, it is raising awareness of what the current administration is either doing or enabling. It is also raising awareness of the Stonewall riots.
Let me ask a related question, how does employing the power of the federal government to do the reverse manually and at genuine cost to the taxpayer help anyone?
> I know, Marsha did not throw the first brick at Stonewall.
I assume that the intention is to confuse people. They at some point found out that Johnson wasn't at Stonewall until it was over, but still for some reason need that name to continue to be associated with the event. I assume the next extension will insert mentions of Saddam Hussein around any mention of 9/11, but include a disclaimer that says "I know Saddam Hussein had nothing to do with 9/11."