I don't think that fans are that dumb, even for those of us who do not always have high opinions of certain sports fans. Is there anybody who doesn't know that summer in just about all of Russia is extremely hot and uncomfortable? That is pretty much true for all continents when you are far from the sea. Kalinigrad was one of the only places where it could have been slightly cool, but its 4 matches are already finished.
I always forget the frustration of the successive rounds of the World Cup. It all starts with matches every day, some of which are of interest to you and some you don't care about but at least there is always something happening. After the first eliminations, we all have to wait several days for the next round. Luckily, it all starts again tomorrow and then it will become grim.
The Swiss, who are justly famous for their chronometers, have calculated that Neymar has spent 13 minutes and 50 seconds lying on the ground during the World Cup so far, having been "injured" 23 times in 4 matches. He is a very unlucky fellow.