@Martin-Pištora I understand that we can’t force everyone to write in a specific language (English), but I believe English should be the main language if mapy.com aims to be international.
The argument that the developers are Czech doesn’t really hold — I assume all of them speak English.
However, the current forum format unintentionally encourages everyone to post in their native language. That’s fine in theory, but in practice it fragments the discussion.
For example, imagine there’s a thread in Italian. You might translate it into Czech just to understand it, but if you want to reply, you’ll probably try to write in Italian to keep the discussion in that language - expecting other Italian users to respond. But writing in Czech and relying on machine translation into Italian could create even more confusion than simply using English, which most translation tools handle better and more reliably.
If things continue this way, in a few years the majority of posts may end up in Czech. I doubt foreign users will be willing to translate each individual post just to understand what’s being discussed.
As a possible solution, I’d suggest considering automatic translation integrated directly into the forum, similar to how YouTube comments work. This would allow users to write in their native language while readers could view the content in the language of their choice. But for this to work, the translation quality needs to be truly reliable - especially for titles and content important for search and context.
Until something like that is implemented, using English as the primary language is the most practical and inclusive way to keep the forum accessible to everyone.