I tried translating something before posting it to the same language (Thai) and apparently nobody understood what I was talking about. But enough people understood English, so at least some people would have understood me if I just posted it in English. The others could try translating.

Responding in English, if this is your language, is not Anglo domination. A lot of people learn English as a second language, so many know it. If you translate to Japanese and post it, then when people translate it to English, or Spanish, whatever, it will make no sense whatsoever.

When I traveled to France, a Middle Eastern family came into the restaurant and asked for the English menu. They couldn't read the French menu. But they knew enough English. That's when I realized that restaurants in France offered English menus, not for Westerners, but because more people in the world were likely to understand it rather than French.

I post in English. Translating from English to Spanish is better than English to Japanese to Spanish.