No official rules were ever posted (in any traditional legal format) and it was clear to many that there were "legal" weasel outs YC could use (twitter posts as

No official rules were ever posted (in any traditional legal format) and it was clear to many that there were "legal" weasel outs YC could use (twitter posts asking for upvotes) if it somehow came to that. I doubt any possible legal recourse factored in here. Reputation, yes. Legal? No. (IANAL)