Mostly one can find answers by just searching. My personal experience is that I had posted a question and I received a blackguard.

QL is used for advertising also. I bought a car through QL and the person did not allow me to take it to inspection and cheated me (I will not go into details) So, i ended up buying a scrap. There are forums in which people express their views and they do it in ridiculous ways.

Some people prefer to answer diplomatically and to protect themselves from libelling etc.

That is how it works.