MrBoat: You could just don't downvote it and just upvote those you understand and find helpful.
What's the problem with people not accepting foreign languages?
GOG should reset the votes and filter them by language.
Well, I could see a can of worms opening up here. You have several scenarios at play here: a) total review and how it's calculated; and b) the text of the review.
I think if one could see a 'total' review among all languages, that would be helpful. I think if one could filter reviews based on culture, that would be great too. I think if one could be presented with a 'grid' of cultures and their reviews, that would even be better.
But honestly, if I see the video and screenshots of a game I like, look at what languages it supports and system requirements, if I like it, I'll buy the game, without creating much drama about a review.