Whats in an anonymous post?

I seriously dont understand why there is a way to post comments anonymously?
It is really suprisingly stupid to allow anonymous posts or have an option to allow anonymous posts in blogs or in any online forums.
And people who makes use of anonymous posts are the real cowards. I hate to write this here. But at least seeing this, someone would try revealing the identity when there is something sensible at all to convey.

I always hated anonymous calls, texts and letters. These online forums are no exceptions. Phew. I never thought I would write something here about this.