I do not really know what to do about it.
Here in britanny there is two local language (I do not know which one it is but I guess it is "breton", the more mainstream).
It is teach in some particular bi-lingual school, but spoken by only 5,5 % of the population of this (my) region, i.e. not 5 % of the whole country (France). Technically the language is not an official one (not recognized by the constitution).
Personnally I am born here and I do not understand a single word. It is probably the same for the vast majority of players.
I do not know what to do exactly. Just rank 1* the description? Refuse the whole proposition ? Is it in conformity to the criteria to have pokestop with a title and a description not understood by 95 % of the population?