From the comments and an answer which are not there now on my previous question :How can a question deleted by community be undeleted? .
I came to know that a post deleted by the "community moderator" cannot be edited by the OP himself/herself if the OP has reputation less than 10k. But why is this so? Most of my posts on Phys.SE are deleted by the "community moderator" and I wanted to improve them. I couldn't. I didn't know that these will be removed from the list of recently deleted posts soon. I didn't save their link. Alas they are gone now and I couldn't get an answer to them.
Why is there partiality betweenw high reputed and low reputed users.
Not being emotional I am asking why did the designers of SE network take away the right to edit your own post deleted by the "community moderator" from low reputed users? On the other hand one can edit his/her post if it is deleted by some human moderator.