Instead of starting from sweeping generalisations, let's begin with the specific errors you keep mentioning.
What factual error has this character got wrong in respect of the Estonia and why or how in your opinion is it incorrect?
I will freely admit that I am unsure of what he has said regarding the Estonia. My point however, is not "He got this wrong" but "his opinion is worthless because he's not a credible expert". He could, for example, be correct in some specifics regarding the Estonia, however my knowledge of how much of a delusional moron he is indicates that this is unlikely.
You do understand my point, right? My point isn't "This specific thing he said is incorrect" it is "You can't use this guy as an expert". Joe Bloggs could say that taking asprin is good for thinning the blood, that doesn't make him a medical expert.
That said, let's have a little look at his site and see if I can find any glaring errors of fact or ideas that violate physics specifically regarding the Estonia shall we?
Again, I'm not an expert on maritime disasters, physics, boat building or metallurgy so anything I spot will have to be really bad.
From the front page. Not the front page of his estonia page, but the very front page of his poorly formatted disaster of a website.
M/S Estonia didn't lose its bow visor 1994
Even you agree that the Estonia did indeed lose it's bow visor. You disagree on how and how important this was, but this is a clear statement of nonsense from a deluded crank.
Here he repeats the lie, and couples it with another lie!
The ramp was never pulled open and the visor never fell of the ship, when it was upright or floating. The visor hanged on to the wreck, when it sank!
That's two in as many minutes. Again, I do not have the technical expertise to go into his calculations, but having done so on 9/11 and with his insane ideas about nukes and the Apollo missions, I have no doubt they are wrong.
Again though, back to what my point actually was, which you know full well but are transparently and desperately trying to avoid. If someone can get physics so wrong as to think that nuclear weapons and the Appolo missions are impossible, how can you trust anything he says regarding anything physics based? He has shown previously that he is either so grossly incompetant that anything he says should be given no weight, or so willing to lie about things to serve his own delusions that anything he says should be given no weight.