Thanks @Aginvicta, @Peglegreg, and @zoly99sask for your support.
I was not going to stop posting.
At the time, I was disheartened. But this experience reminded me of what apathy is about.
Apathy arises when others see no point in participation.
Now, if I was seen as an incompetent model builder, then others would see a point in participation; that is, to help me out.
But since others did not, they must think I am competent to make my own decisions (regardless if I invite them to participate or not).
So, in a way, I am the one that caused the apathy.
I forget that now and again.
You maybe right about that in the real world. But this boat belongs to the Bridge and Boat Diorama currently under construction. A diorama is more about the drama played out than making precision copies of the real world. Changes can be made, for aesthetic reasons, for the sake of the diorama. Black tyre bumpers on a white hull, aesthetically, is more appealing and dramatic, than a black tyre on a black hull.I just made some google, most of the working boats have black hulls. This makes some sense if you imagine, that they have much more often „contact“ with they surrounding (jetty, boats and ships, etc.)
I would paint my ship with a color easy to repair and repaint. In addition you will have a lot of tires hanging around your boat to protect the hull, so no black rubber on top of a white hull -> black