I get 17k in your project with find . -name ".clj" | xargs wc -l but 8k if I run 'find . -name ".clj" | xargs egrep "[)\]]" 2> /dev/null | wc -l'.
If I just run `wc -l` on our project I get 35k lines.
8k SLOC is still a pretty impressive size project considering the audit of several open source projects that I did were mostly below 8k SLOC.