it might be silly this question but in this website of italki, the discussions seem to be related to some things which are a controversy or sometimes they are questions of the daily life but in the area of answers, it's about asking the language but at the same time I found some questions which are not related with language.
So I ask myself what makes the difference between to write in the section of discussion and answers?
Sometimes they are mixed and entangled hard to clarify indeed.
Question and answer.
Discussion and opinion.
Ask a question = about grammar points, vocab, etc
Start a discussion = about a topic of interest (e.g sports, politics, etc)