I want to cleanup my answer due to whatever reasons.
I get an error something like
I have already deleted 5 post......
Why is this restriction.
Meta Stack Exchange is a question and answer site for meta-discussion of the Stack Exchange family of Q&A websites. It only takes a minute to sign up.Sign up to join this community
This restriction is in place to prevent users who want to quit Stack Overflow and delete all their content from doing so.
It happened before that a user gets frustrated and wants to quit Stack Overflow. Deleting valuable content should be stopped.
You can only delete 5 posts every day. There is no expansion to that.