Since some time I encountered that people quickly are downvoting or voting to close on questions I pose without leaving any comment. Of course I'm adressing them in the hope to resolve the problem however mostly nothing comes back. But since some time this become already way to much. What should I do?
I don't want to be rude but it's probably because you post questions like this, that have been answered millions of time before and that regular users have grown tired of answering. You might want to run a little search before posting content this way, you are sure that the content you are about to post is not already covered somewhere else and therefore, not instantly downvoted.
As Chris said in the comment above, you can refer to this post where the subject has been covered from all possible angles.
That being said, comments are not mandatory. They are to the user's discretion. The voting system is anonymous; if user had to post a comment after voting, that would go against that system wouldn't it?