The response from PubPeer's lawyer is certainly interesting, particularly the analysis of the images in question. But I wasn't trying to argue one way or the other about the actual merit of the accusations really. I was more pointing out that it seems fairly clear that someone, acting entirely anonymously, was set on getting this man fired. He did indeed lose a job (in fact two!), seemingly because of the efforts of this anonymous source, without any kind of formal inquiry or detailed analysis of misconduct. And the alleged actions of the anonymous attacker were entirely unprofessional and just plain shitty. Does the guy deserve to have his career destroyed? I have no idea, but trying to do so in such an underhanded mean-spirited way is just nasty. But this is academia after all...

I feel compelled to point out that it's not possible to downvote the people who reply to you. I'm certain that you don't intend to imply this, and I think most people here know this, but it does come up on occasion.