In the past I found in comments of translated images the translator stating that (s)he can be contacted and asked to do a certain translation.

Now I wonder, is there a way to find a list6 of gelbooru users who did offer such things in the past? Or do I have to look up as many translated images until I find one where the translator offers translations if (s)he is asked kindly?

No names to be found there, but its an attempt at least.

All I could offer is typo and phrasing corrections (e.g. when something was crude translated into English) since I cannot read any Japanese.
But I dunno if such help is wanted, or needed. *shrug*