Not a lawyer, but I'm pretty sure even in the USA if you can make a case that a company largely exists just as a proxy for a person, usual limited liability rules don't apply. Even if you filed for them, by using it as a proxy, you've violated the requirements and abrogated that limitation.
Otherwise, I could just set up Endus LLC with a fairly cheap filing cost, get credit cards in the company's name, max them, and then toss them in the bin and never make a payment. If they come after me, oh noes, the company goes bankrupt and I, the company owner, walk away with whatever those credit cards bought me. Too bad so sad. That's really not how it works.