Lynn,
There is a russian site ag.ru - the largest game-devoted site ever in Russia.
It has its own forum where people discuss games and their solutions etc.
When I was looking for solution for one quest I went there and found out that "Divinity II" thread already had 30 pages of posts. Most of them contained not only questions or solutions but also some words about how people liked the game and their own game rating (not less than 80%, usually 85-90%).
What do you mean "how do they know the game?". Here in Russia we are not white bears in strange hats carrying vodka everywhere we go. Our people make game announcements usually even faster than people in Europe. So when someone made an announcement about Divinity II some bought the game in internet shops (and were playing in on german without the knowledge of this language) and some downloaded the game and hacked the language to switch it to English.
Is it clear to you now?:)