When one sees what happens with math, physics, and specially with the sister sites where solutions are based on code (TeX and stackoverflow) and which automatically can deliver ten beautiful answers, German, and in general languages, are maybe are rigid enough to allow a single answer.
For instance, these are very good questions with less than 2.5 answers:
Many grammar questions have only one "solution". They are not based on an opinion, but on grammar rules.
Is it normal that the 2.5 answers/question is asked in the area.51 to this site?
Paraphrased: Is it really healthy that only the said ratio 2.5 is asked as "good", if by adding answers one can even be superfluous?