Why would it make life much more difficult? Today, "changeset-reading miscreants [have] dozens
of new attack vectors to explore every day." In that case, "changeset-reading miscreants
[would have] dozens of new attack vectors to explore every day." I'm not sure that it would
have a serious effect on the time it takes to find a feasible attack vector and exploit it.
On the other hand, for sometime after the final release, those who were behind on the latest
kernel would have a less actually exploitable holes in the kernel for even the most careful
source-code reading hacker to find.