Im all for exposing these creeps by whatever means the victims can. If that means posting emails and DMs, by all means, do it.
Anyone that has been a victim of harassment or sexual abuse knows how soul crushing it is to have your story dismissed and you branded a liar and treated like a pariah because you spoke up. You have no idea how fucking hard it is to come forward and put the humiliating, dehumanizing, and traumatizing experience out there for others to hear in the first place, and when you do, they judge you, and shame you and try to discredit you.
Being able to prove in some capacity that the abuse you experienced is real is a luxury many victims cant afford. Generally, its almost always a he said/she said sort of situation, and most people align along their biases when no evidence is present. Knowing that when the abuser is in a position of power, they often have ardent supporters and followers eager to lend their axe to fight for him/her is enough incentive for many victims to keep quiet.
All you have is your word, and thats often not enough if your abuser is a person of celebrity. So yeah, receipts if you have them, very well should be presented. All it can do is help you. And any other unfortunate victim who comes forward is a help too. But sometimes you may be the only victim, and then what course of action do you have? Come forward, be dismissed and ostracized, and your abuser goes unpunished, while you still suffer from your abuse.
I feel absolutely horrible for the victims of abuse that have nothing but their word, especially in the case of a high profile abuser, because celebrity worship tends to have people dismiss claims of abuse outright. Especially if its someone theyre a fan of.
It makes me incredibly sad that so many victims of abuse stay silent because they know its a losing battle without absolute proof. Living with your trauma while your abuser struts around like theyve done nothing wrong, and everyone else sings their praises, is a horrible feeling. A really horrible feeling.