I agree, from what I can tell you don't really face much 'danger' from speaking English openly.
To me it is more about etiquette. I feel sorry for confused JP players who spawn into ship 2 block 1 for the first time.
That said, if someone speaks in English in public chat with no ill intentions then I hold nothing against them.
In the end it comes down to personal choice, and it's not like either option is deliberately harmful (although block 1 has way more problems than just the rampant English).
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