Hello Nixx - thanks for the feedback. The history here is that I implemented a translation layer in the game to support Russian, and with this in place I though I might as well add some additional European languages too, this was primarily using machine translation. My logic being that for a non-native speaker, having access to an automated translation with some bad grammar is still better than having access to no translation.
You are right though that I don't flag up that these other translations are not nearly of the same quality as the Russian one. I did manually review every Google translated string in French, German and Spanish (for example, there are many single-word translations which need to be used in a sentence in order for the translation to choose the correct homonym from English), but there is a limit to what I can catch here with my very mediocre language skills.
I'll make the machine-assisted nature of these translations much more apparent in an upcoming update, and if anyone is reading this comment who would like to contribute any crowd-source corrections, let me also post a comment link to the master language sheet which gets parsed by the game: https://docs.google.com/spreadsheets/d/1vGv6kgnBL3JCDE1yNiZTvI9zvv1pkrjk9gtuFwpO...