The inappropriateness of the images is their context -- whether classified as porn or merely risque, their only purpose in this talk was to cloud a technological discussion on the state non-relational distributed key/value databases and their comparison to RDBMs systems, and in doing so unnecessarily offended a significant subset of the audience.

For example, compare slides 15 (RDBMs):

http://www.slideshare.net/mattetti/couchdb-perform-like-a-pr...

and 52 (CouchDB):

http://www.slideshare.net/mattetti/couchdb-perform-like-a-pr...