It is interesting to bring up different kinds of photography perspectives, as it's way too common to take photos only in the same perspectives over and over again.
When I was reading the post and looking at the sample photos, I was thinking "That could be cool, I haven't done that" even though I've actually done this a few times.. as I can imagine we all have.
But it's different to get certain kinds of photos "by accident" than knowing why and how to you should work for such photos.