"The Bodies used in this mod are from the now retired Enhanced Vanilla Bodies mod by Leito86, both the mod, and mod author no longer exist on the nexus, This was the best male body in my opinion, and I was sad to see it removed."
He didn't give any credit to Leito86, but instead gives credit to "Pubes for male EVB by prinyo" who in turn gave credit to Leito, since he gave him permission, just because someone gets permission from the other doesn't mean that permission is grandfathered onto the next. If this is anywhere involved with leito's assets, this won't be up for much longer.
If you read it again he is giving me credit for the pubic hair conversion that he is using as one of the body variations and nothing more.
He is clearly giving credit to Leito, this is even the first thing you quote in your post. Not sure why you think he is not.
While EVB was up the mod page stated that you don't need to ask for a permission, you need to credit the author.
EVB disappeared without a notice. All the mods that use it were created while the mod was available and follow the permissions that were valid at that time. It is not clear what needs to happen now that's why I have decided to not do anything else FO4 related before things get clear or before there is a new male body mod available. But on the other hand the FO4 modding scene is way more toxic than the other games - as proven again by your post that seeks to create drama out of nothing, so I'm afraid we will not see many new mods coming online for it.
Again - all mods that use EVB in some form that are available to download were created while there was a clear permission to do that. When EVB disappeared there was no request to take down the related mods. There is no notice that the permission is been withdrawn retrospectively. I'm no legal expert and I was thinking what should I do with my 2 mods that are EVB related. Then I checked to see what everybody else is doing and saw that all other mods remain online. If I receive a message from Nexus saying that I need to take them down I will do so immediately. As things are not clear to me I have decided to trust their opinion on the matter. I guess this is what other mod authors have decided to do as well.