Yes, skilled professional translators who are native-level in both languages are possibly the closest to a perfect translation you can find and arguably they are one of the reasons that international diplomacy is at all workable (though they are still imperfect, purely because languages represent concepts with different nuances, and translating the nuance of any given phrase could require distilling an entire lifetime of cultural experience into a few sentences). That being said, I doubt you'll find one on HN who is going to bother to translate a Hindi video about how to create spam PRs, so you'll have to make do with a native speaker (who isn't a professional translator) has said -- hence my comment.
And my follow-up comment about being suspicious was about the vast majority of people who do translations (especially online), and I would go so far as to argue that some degree of suspicion should also be applied when newspapers use translations as though they are direct quotations. But I wasn't (generally speaking) talking about professional translators.