From Lennart's announcement, linked to in the LWN article:
"One of the features of Fedora 17 is the /usr merge, put forward by Harald Hoyer and Kay Sievers"
"Primarily I put this together to have a nice place to point all those folks who continue to write me annoyed emails, even though I am actually not even working on all of this..."
" And not actually by me, I am just a supportive spectator and am not doing any work on it. Unfortunately some tech press folks created the false impression I was behind this. But credit where credit is due, this is all Harald's and Kay's work."