Originally Posted by Ygdrasel
Because people who want to die would totally announce it everywhere they go...
Agreed. I think what Kenny says earlier doesn't directly go against his actions.. Fighting walkers until they overwhelm you and eat you is different than shooting yourself in the head. His speech was about not giving up no matter how hard it is. So him fighting the horde of walkers to try to help the people he cares about, no matter how difficult or dangerous it was, is what he did.
Maybe he didn't specifically want
to die, but didn't care if he survived or not, as long as he helped his friends.