I understand the temptation to say to oneself, damn! That wasn't okay at all! I should tell people about it!
However, my credibility quotient is based on how serious the assault/harassment was, was the victim silent out of fear (losing job, being shamed, being shunned, etc.), and is there real personal jeopardy now, when they finally come forward. They all know that their names may be dragged through the mud by one "side" or the "other".
Those accusing George H.W., Al Franken or others of being a butt pincher during photo ops I usually ignore. I'm not saying it didn't happen, and if it did it was certainly improper, but a clearly posed picture with everyone smiling broadly, usually surrounded by a large group of people would be a pretty dumb place to be frisky. I kind of smells like, Hey! I can get my name on tv because of that! I mean, damn, going back to Poppy Bush, when everyone knew he was a serial butt pincher as a dumb joke he'd pull on women he was friends with... even Barbara supposedly muttered once, "Stop that. You're going to get arrested some day."
How seriously do I take the current crop of butt-pinch stories? About as seriously as Barbara Bush took them about George.
Franken is not off the hook for the other incident, not by a long stretch. That guy clearly never learned where the line was, and with the forced kiss, stepped over it. Franken also never learned where the line of "funny" was, and clearly stepped over it with the groping photo, which appears to me to be a direct attempt to humiliate a woman who'd just rejected his advances. That is clearly outrageous.
The butt-pinch story? Not so much.