You tell me? :)
they are voyeurs not performers
Questions may be asked for two reasons. Either to know from others or to test others exhibiting their own knowledge to others. In either case their own reply may not be expected.
Lol! I don't answer, if they don't. Usually whenever I ask a question, I answer it myself in the details.
If it is a personal question, they shouldn't be afraid to answer it if it gets directed towards them. Only fair.
But you know... moral codes and principles nowadays..