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The intention of the post is also important. If by any chance you are congratulated in a language that you don't know, and still want to thank the ones congratulating you (for whatever the reasons), it'd be a "valid" or "legit" reason to use a translation tool.
If you speak another language but struggle in a certain one, it may also be a reason to check your posts on a translation tool, or take some sentences you otherwise wouldn't know how to say from there.
But the moment a post is money-incentivized, no mercy shall be showed on the translator. It's plain spam, or even a scam if the poster is getting paid for such a "translation".
I've recently been rather vocal about this issue, as I caught a "translator" had been using google translate for all his works since 2016, even if he was a native speaker of the language... I don't mean to hijhack the thread, so I invite you all to check it in the reputation board (
or here). From there though, I'm glad that the local mods that shared their opinions had the same I did in mind; the rule should be strictly enforced, but there are some situations in which it isn't necessary/could be overlooked.