What’s the advantage of outing yourself as satoshi?
He's not outing himself as anybody other than Craig Wright. He's pretending to be satoshi because the fate of his shitcoin depends on him maintaining this masquerade.
1. Paying a zillion dollars in tax.
We've been over this already. You can't pay taxes on bitcoin if you neither sold nor bought it. That is unless he is the recipient of a trust as you claim, then he would eventually have to pay taxes on it regardless, I imagine.
2. Having every central bank and government wanting to kill you and your family.
Self-aggrandizing paranoia is the most popular form.
3. Earning Nutildahs respect.
Like most people who are aware of his malodorous presence, he will never have my respect. The only way he could possibly earn my respect is if he apologized for lying to the crypto community and then disappeared from the public scene, as he originally said he was going to do in 2015, and then again in 2016.