Thankfully, there's not much forcing you to use much of it; the "template repo" I use outright disables forum/wiki/chat/bugtracker access to non-admin users (i.e. anyone who hasn't cracked my password), since most of the time when I throw code out into the world I don't really care all that much about supporting it - and in the cases where I do care, I can always re-enable exactly the things I want.

Fair enough. I usually deny permissions to the features I don't care about if I'm pushing it up on the web. It's nice to have them there if I need them, though.