It would be nice to have Steam or forum posters specify what language they are posting in, as some kind of metadata that could then be filtered.

Where most forums are in English (which is, more or less, used globally) with the occasional thread in another language there are some games where this is not the case. If English is not the official "go-to" language it makes it almost impossible to navigate such forums for most of the world in such cases.

Case in point: Escape From Duckov seems to have a very large audience in China, and as such those forums are full of threads in Chinese. It would be nice if I could actually filter these threads out to see only the threads I can understand and take part in.

PS. Please don't misunderstand - I don't wish to punish people posting in other languages. If anything I'd like this to be something like the reviews where I people can pick the languages they're proficent with and can then see threads only in those languages.