Yes you can, you need to edit that tail file mentioned in the bug and
restart. (The restart could probably be avoided with 1337 skillz...) Your ISP
probably offers name servers, and those would be a good choice from a privacy
view point since your ISP already sees all your traffic.
(I use my ISP's, they're faster too than google's for me I believe. Answer to
pings twice as fast.)
Of course, if your ISP practices censorship you might get around that using
some other DNS.
I don't really know too much about this subject either, perhaps somebody will
enlighten us both.
