@ Lucario - While that is certainly not a positive post, it also does not really cross the line into "offensively slandering" or flaming. Best to just ignore the comments, as they do not require moderator action.
Although I did not hide the post without action, here is my take on it.
I would take the image at face value (no pun intended) rather than trying to read more into it than what is there. Here's what I see at face value: The poster you reported has provided an image of a historical figure for whom numerous people have strong negative feelings, similar to the strong negative feelings that quite a few people have expressed about f mods.
It is the image that is important - rather than the man - and on topic, because the crux of the thread's topic is if you change a physical visual associated with the f mods -the crown (which is not so different from a uniform) you change the feelings or change how people view the f mods.
So, asking people if one's strong opinions about a well-known person have changed when he is attired in a kimono rather than a uniform is directly related to the topic. The poster is refuting the OP's contention by sharply drawing a comparison of like images or symbols (crown and uniform).
Since the OP is active on that thread and has stated that she wishes to have the topic discussed freely, she can decide which posts, if any, require moderation.