I happen to have an interest in all matters related to Jack The Ripper. Exactly who was the most famous mass murderer of all times? There is a forum where exceedingly knowledgable people post questions, or information, and others, similarly endowed, provide answers or opinions---much like here.
Were I to go on the Ripper website and, right from the start, make claims that I had thousands of pages of Ripper documents and photographs, I would be met with a healthy bit of skepticism. Those claims are received much differently from someone who has presented himself/herself and has become known to those similarly-minded people on the forum.
For those who may remember, in the 1980s there was an EF Hutton TV commercial telling folks they did it the old fashion way. They earned your trust. So it is with many aspects of life.
In my opinion, the bigger the claim, the more responsibility one bears especially when you haven't introduced yourself to your fellow readers. Who doesn't wish to be courted before being asked?