If I were to sign that "contract", I would certainly send the other party a written "signing statement" that interprets all possibly ambiguous clauses in my favor, and mentions that I received no valuable consideration for signing it. If you can't tell me what the contract means, I'll tell you what I thought it meant, and that will be what you can enforce. If you won't pay a lawyer to answer my questions before the fact, you can certainly pay one to determine the implications of my letter for you after the fact.
If I were a judge (and I'm not even a lawyer, but I can still role-play), refusing to even answer questions about the contract demonstrates a lack of equity, and I'd take that as potential grounds to dismiss any claims against the person who asked them, that may have been based upon the document they signed, which they were completely unable to negotiate, and likely received no valuable consideration for. If someone asks, "does this mean you can claim ownership over X?", you don't answer definitively, and then you later claim in court that you own X, that's bullshit, pure and simple. If the other party did not understand that to be the case at the time they signed, it is unenforceable.
If I were the defendant, I think I would also try to paint that refusal as an unwillingness to pay for some professional legal counsel at an appropriate time, rather than asking a judge to clean up their mess long after the fact. Everyone hates it when they get snubbed by someone, and then that person later comes asking for a favor. Referring legal questions to legal counsel is simply a cost of doing business. If you can't pay that cost, and try to shift it to the public legal system, how do you justify the rest of your business?
