DukeNukemForever: There is a spam-button for reviews. Maybe not easy to see in the first place, but still better then starting an online pillory here,
AFnord: I've reported several reviews as Spam in the bast (just check the low rated Advent Rising reviews), but last time I checked, they were still there.
That's bad. It would be good to know when gog checks the reviews, I guess only after some reports. I think the problem is that not many uses the spam button and so they only check them in a few extreme cases. Saying this maybe they should implement a seperate spam-button and ask the community to take advantage of this feature. But please, no name dropping here.