Is there anything wrong with posting a question or generating a discussion in other languages other than English?

This question address an issue that has multiple layers of complexity.

On the surface, we are all aligned with inclusivity and diversity. With sincerity. There is - and there should be - no qualms about content in multiple languages. We are all grateful to receive viewpoints from many disciplines, many industries, and many cultures.

If we go one level deeper, however, we have the issue that's pinpointed by Eric with great clarity. If I were to submit a post in Hindi, I would automatically exclude a large chunk of the community - translation tools simply will not provide the impetus of my message.

The question is: Is there any benefit in posting in a non-common language in this scenario? What is my end objective?

If my end objective is to get as varied a viewpoint as possible from the huge roster of experts we have on this site, then it falls upon me to express my views in a language that's commonly understood by my audience.

If my end objective is simply to transmit a message (without too much emphasis on how it is received by the larger community or on feedback from this community), then I have the freedom to post in my language.

As Mayte notes, there's no hard and fast rule for this - it is a choice left to the individual poster depending on what their agenda is for their postings.

I do not understand why we have to write in english except when the post is initiated in english.

As many of us agreed, English will probably give us a lo of responses.
I have had not so good experiences with google translations, so i would probably re- iterate the question in English before responding.