You can only do so much to prevent theft or stripping of parts and a bike like this is far more attractive in that it has some pretty outstanding parts... getting the bars, stem, carbon fork, and wheel would only take me a few minutes.

You just can't protect everything and locking is only one part of a good security strategy... parking in well traveled areas, not parking in the same place every day, and locking up with messengers are excellent ideas.

It is not that messengers do a great job of locking their bikes but it is because local thieves know that the odds of being caught in these areas is very high and that there will be more eyes watching.