The only reference to that person was his riddle how did 2,000 cubic metres of potential water on the car deck capsize when there was 18,000 cubic metres of air below. He is a naval architect and ship surveyor so it seems he might know about such calculations.
If you look at his webpage, you will see that Mr. Bjorkman makes many assertions but rarely provides any detailed calculations sufficient to justify his interpretation of events.
Nobody doubts, I suggest, that water ingress can lead to potentially severe heeling within a ship and that the free surface effect contributes.
Now, if we assume that the water ingress is mid-height (i.e. the car deck) with watertight, unflooded compartments below then there is the obvious issue that your centre of gravity moves upwards and there is a greater risk that heeling occurs.
One of Mr. Bjorkman's views is that, once the heeling occurs, the ship effectively stabilises in that position. An obvious problem is that further water ingress may occurr, either from the same source as the original or through openings below water as a result of the heeling. It also assumes that watertight compartments remain so.
This is typical of the problems we encounter with Mr. Bjorkman's work on any subject I have seen to date - he makes broad assumptions, fails to back them up with a rigorous argument, and argues from personal incredulity.
Take, for example, this section:
HEIWA said:
Nobody saw the ramp fully open, 4.7 and 4.23. This means that three visor locks, two visor hinges, two visor lifting pistons had been ripped off, that the lifting pistons had eaten through the bulkheads at fr. 159 and that two ramp hooks and four ramp lock pins/bolts had been ripped apart during circa 15 minutes between 01.00 and 01.15 hrs, and that no particular noises had been heard on the bridge, even if noise was allegedly heard elsewhere on the ship, when the flipping visor had pounded against the fore peak deck. The Final Report does not say that the JAIC had previously reported that the ramp was partly open, more open and later closed, 1.11 and 1.15
There is no discussion of the relative positions of the bow and crew areas, let alone the bridge. There is no discussion as to whether crew members would have been on the car deck and in a position to view the bow (my own experience is that the car decks of ferries are not patrolled or supervised after departure). There is no discussion of the positions of video cameras. It is no more or less than a series of framed assumptions.
As for his interest in JFK or 9/11, what is 'nutcase' about that, when millions of people still show an interest in JFK, given the sheer number of documentaries that still come out. If he is indeed mentally ill, that doesn't mean he is not able to remain an expert in his field.
You are, I think, complaining that we are using these references to poison the proverbial well. Rather, what I am warning you is that he has a consistent modus operandii and advising you that a more rigorous, sceptical approach is merited. What you will not find in the post you responded to is any reference to JFK, or me calling Mr. Bjorkman a "nutcase". Probably best that you avoid such strawmen in future.