Let see......
"the day I let some flimsy sign on a mall parking lot or pick up stub at the local cleaners stop me from persuing my right to recovery due to flagrant error on the part of the dim lightbulb that had the sign or ticket printed...."
*** No one said that the sign or stub was going to stop you. If applied correctly (and a lot aren't), that flimsy sign or stub CAN limit their legal liability. Your insisting that it can't, is simply incorrect. (BTW, it is spelled 'pursuing')
"My wife had her car damaged by a flying shopping cart in a grocery store parking lot, the cart recovery kid was trying to wrangle too many and they broke away from his grasp. They had those rediculous signs all over the place. We won $877 in repair of our car."
*** A sign limiting liability wouldn't waive liability due to negligence (as in your case). But, I am interested in your claim that you 'won' this compensation. Did you 'win' this in court, or just that they agreed to pay (due their negligence)?
"My daughter had 4 suits ruined by a cleaner. They are known for those clauses, again, full reimbursement."
*** Again, in court, or as a 'good customer relation' decision by the cleaners??
Unless these 'examples' you provide were decided in court, they are NOT based on sound legal precedence.
"Those signs and tickets are there to scare the niieve. Let a court decide if they are actually "liable" or not. Chances are, they will be held, at least in part, accountable."
*** Again, wrong. The court will decide liability based on the specific circumstances. Your assumption that 'chances of accountability' has no relevence in law. (BTW, it is spelled 'naive'.)