Comment It's all about obstacles (Score 2) 88
Even if the language was enforceable (a Facebook Like? Probably not... a coupon download? Borderline, but may only be enforceable for the item purchased with the coupon), ridiculous contract clauses are all about creating obstacles to a lawsuit. You are absolutely correct that no judge is going to remove complete and total lawsuit rights because a consumer once went to the General Mills website to check nutrition information.
But that's not going to stop their lawyers from trying; they'll first issue an intrusive subpeona for the consumer's computers, pointing towards the clause as their need for the information. If the subpeona is not quashed, then they'll lob a Motion to Dismiss, pointing towards the clause. When the judge laughs it out of court, they'll appeal. When the appeal is denied, they'll bring it up again in a Motion for Summary Judgement. If they lose whatever it is the trial is actually about, they'll bring up in appeal.
All this is meant to create more work for the plaintiff's lawyer. Since most product liability cases are brought on a contingency basis, any additional hours spent on the case cut into the lawyer's profit margin. Create too much paperwork, and the consumer will never find a lawyer to take the case to begin with.