They dont have to agree with the conclusions fromt he evidence, but they should fell an obligation to provide it to others when you share this stuff publicly.
When i am talking about someone if they reply with a counter argument and i later publish evidence against them I will go out of my way to include their counter argument even if I think it is nonsense, because of a sense of integrity to presenting all the information to my reader so they can make an informed, not forced, decision.
But yes I agree with your final conclusion that any evidence against a server should be based on the content of the timeline.