I thought I would reach an audience of different nationalities by publishing in two languages
Post in two different subforums (no matter if in different languages or not) are usually not very well received by the group of responders which are mainly the same over the whole forum (Denis, Tpartner, Joffm, me, Jelo, Tammo, etc). Why? Because we might answer a question that has already been answered in another subforum. So we might spend time on something that has already been solved and the time could be used elsewhere. Keep in mind, we are doing this in our spare time. If you think it is benefitial to post in more than one language, a link between the different posts would be great, so we can see that it has been asked elsewhere and can check if there have been answers already.
Denis should be showing up in the forum at some time, he is very active here. But of course, there is no guarantee for an answer within a certain time frame (at the end of the day, this is all voluntary work here in the forum).
Now, before you start to adapt your own survey theme, you might want to contact Denis directly via his website. He might be up for contracting:
Here is the link to skelvanilla on his website and you should be able to contact him via the webstie as well.
extensions.sondages.pro/themes-and-templates/