I just wrote a wrong pros entry. http://www.slant.co/topics/60/viewpoints/3/sections/5/pending
This is actually a cons, so I re-wrote it in cons section. http://www.slant.co/topics/60/viewpoints/3/sections/6/pending
And now I don't have delete button. I think we all do mistake, and sometimes we really need delete button.
Or if you're care on postings as community asset, it also would be a nice option to have moderation request button which calls moderators to delete some postings wrote by mistake.