I whole-heartedly disagree. Paintjobs, as with anything displayed to the public, are there to be judged. This includes visible tattoos, team logos on cars, hats, etc. If it is appropriate to give kudos for something interesting, attractive or enticing, it is also appropriate to be able to comment when something is the opposite.
Sometimes these paintjobs represent one's own taste. Sometimes, it the only wreck they could afford and the paint came with it, sometimes owners dont care. But a thread like this, IMHO, is exactly why our boys are fighting the rock-throwers in the Middle East.
If the owners of these boats dont want criticism, get it painted all white or sell it. Otherwise, they should put an extra brew down and pony up some photos of boat even worse than theirs to deflect attention. . . much like how Michael Jackson's death took all attention of Iraq, Iran and political travels to Argentina.
But that is just my opinion, I could be totally wrong.