Mizinamo is indeed authoritative. I give all credence to his/her answers, and always hope to see something from him/her when I'm puzzled. But I agree that this response seemed a bit cranky. I am far from fluent in German but i do happen to understand the sentence " Was bedeutet das?"
Many (some) people collect flowers and then place them into some kind of scrapbook. According to a site I found it is an addiction for some people.