I have been roaming my hard drive and have found hundreds of pics i have been sent or found over the years that are in a folder called humor pics..

I wonder if posting them would cause me to have dmca issues since I have no clue who made them, where they came from.. ya know the old story prior of the internet not actually having laws imposed on it.. anyone remember that time?? Well these are all from that era.. what to do? what to do?