I've seen several questions in non-English, where a user (typically high-rep) puts it into Google Translate. Here's an example (Wayback Machine if it gets deleted). I do realize that post had other issues (THE OP USED ALL CAPITALS, for one). But most non-English posts tend to lack sufficient details for a meaningful/correct answer.
The current Meta consensus appears to be non-English posts aren't allowed, but if you see one, you can translate it if you know the language, and that the non-English part should be removed. Also note that that question/answer is more than ten years old, so Google Translate has improved since then. A newer, but less agreed upon (+24/-12) question proposes that we translate instead of VTC. The answer (+16/-0) says that they should totally be closed.
But, high-rep (more than 20k rep) users have been using Google Translate.
My personal opinion and this is similar to what @terdon said is that non-English questions should be closed and not translated. Here's why:
- If the OP didn't post their question in English, the answers probably aren't useful to them
- Google Translate isn't consistent. Can it be great? Sure! Is it "good enough"? I don't think so.
- If someone that knows the language translates it after it is closed, they can always vote to reopen.
- I find that non-English posts tend to be lack details, so one couldn't meaningfully answer them anyways, so translating a question, only to have the result "lack detail or clarity" isn't useful. Might aswell just VTC in the first place.
- Non-English posts aren't allowed on Ask Ubuntu, so closing (and maybe downvoting?) them is better than using a questionable translation source to try to fix a question
But I think that immediately using Google Translate to translate non-English questions is bad.
So, should questions posted in non-English languages be translated (with Google Translate) or closed?