Measurement of community: references to 'happy mutants'

I dunno, searching for “happy mutant” (with the quotes) produces a number of results here on BBS, via the search icon in the upper right. Click “show more” to see fuller results. And we can ask the Googles:

https://www.google.com/#q=site:bbs.boingboing.net+"happy+mutant"

Results are quite similar.

Still it strikes me as an odd metric to rely on. How about something like number of posts, or number of logged in user sessions, or I dunno, number of references to unicycling darth vader mask wearing flaming bagpipe players?