This is a
critical situation. Even if my voice is not as loud as many other reputable members, I will try to lend my voice here.
I have outlined some issues below to consider;
1. If negative tags from more than 1 DT member is overlooked, there will be a time in the forum where negative tag would not be considered again. In as much as you can make some quality posts, to hell with the negative tags. Even if it sounds funny, it will soon happen, especially now that number of campaigns have exceeded the number of good posters.
2. Some negative tags are retaliatory, such as the one carried by Poker player, yourself, BitcoinGirl.Club, JollyGood, etc. Such tags can easily be overlooked by a campaign manager but seems like the ones you are talking about in Op is about ethics. Measuring a local ethics to that of international, I think the later takes precedence.
3. You noted that you don't understand the language of that local board in question, and online translators can give you some connected ideas but it may fail at some points. How then were you able to know their culture. Or did you speak with the victims privately and they explained their culture to you.
I could tell you the board name and also could tell you the members who left feedback (maybe from not understanding their culture) but situation is like that if I tell the names then others may think I am trying to get some attention to awaken some old bitter experience and maybe is trying to take some personal revenge. I don't want anyone to have such thinking in mind.
4. I'll conclude this way;
With your reputation in the forum, you can be the right third party to solicit for the victims. Pm the persons who left the tags, and they may consider to turn it neutral to enable you hire them. But if the tag giver is someone you cannot visit their pm, you may decide to bring up the matter here and the community will see to it.