Of course.
That’s how folks learn, by investigating and thinking for themselves.
Eh, that is not how things are supposed to work. You made a specific claim about Ulsterman's veracity, and we have utterly no idea which articles you believe to demonstrate that. Therefore, you provide the links to those articles, as well as your explaination as to why you think those articles have veracity, and then the other posters can decide if your position has merit.
Otherwise, you're just pulling a Mary Mapes on us.
You made a claim, back it up.