A lot of us are investing considerable time, money and energy into Bitcoin related services. There's talk on these forums of embedding DNS, files, ... food  

Bitcoin should focus on money. By including all these extras in here, you will scare off others. Focus on one thing and do it well. I don't want the code-base to become bloated/be debased with all these extras that may not work and just use up our energy.

We have something that works. Lets try to protect the parade.

However, having said that: if there is some way to generalise Bitcoin so that anyone can setup services with no preference, then that can only be a good thing that'll strengthen the network. I'm against though including specific things in the main codebase.