Antiterror has been warned before for leading questions like this and then replying with flame bait when they were honestly answered.
On this very same thread:
AT13 Warned on Japan Thread
That's why.
I'm not sure if any posts were deleted in that particular chain of posts, so maybe that would give more context for what had actually transpired there... but based off what I can see he was asking similar questions regarding the origin of various subsystems and wondering why Japan couldn't produce it themselves? Given the advanced state of Japanese industry, it is a valid question.
Was post 1314 the reason for the warning? I can understand that it's a loaded post, but his statement also not exactly untrue and in time Japanese foreign policy may definitely become more independent.
(Note: there are obviously certain political topics on SDF which we do not broach mostly regarding Chinese politics, but I did not know that discussing the future possibilities of Japanese politics was also a red line. If it is, maybe add it into the official rules so everyone knows?)
Regardless, I'm not trying to challenge the judgement of the matter as the mod, and I didn't follow the posts as they emerged, I'm just expressing a slight bit of confusion regarding the reaction to his most recent question about radars and his previous posts that I can see (from page 131 and 132).
On the topic at hand, with antiterror's clarification above, we can see that he meant it only in relation to AEW&C radars... although it would have been a valid question for all Japanese ships and aircraft as well just on the basis of lack of familiarity.