Why does the quality of questions on this site keep getting worse and worse?

The place has become the haunt of trolls, mentally challenged,  and sexual perverts.  Few "normal" people post questions anymore. 

Because people like you don't actually post answers to questions. You just post opinions.

Because people are getting more and more stupid

Because the age of the users keeps getting younger and younger.

Try another category. Certainly not worse in Math and physics. 

Because not enough users are reporting violations.

anonymous posing and also answering has contributed as well.

People are nasty