Seeing the start of a tag is alright since you can often
identify it by the id or some other identifying tag
However locating the closing tag in a long document is
very annoying (though you can try tracing it using good
notepad++ shows lines between
so that's useful.
What would be nice is if there is a box shown
automagically next to each closing div tags (space
permitting), showing what the other tag looks like.
... while later
</div> [ id="post-section" ]
If too annoying, just make it show on hover (over the
line, not over that tag... make scanning easy).