Hi there.
I know that every community has their own tools, but please consider using the same tool that many anti-abuse system use it . Zerogpt detector inside OpenAI which can test other languages and give the report in your native language in addition to giving fewer false positives and negatives than any other free tool available. Not sure if the user used some tool powered by AI for the translation, but the original text in Portuguese has almost 0 probability of AI content. Check the report that I got it.
