I'm sure there is a place for both.

In the case of a multiline block, usually there are other variables that you really do want to hear about being undeffed, regardless of the fact that you don't want to hear about a couple specific ones... On the other hand, in a tiny block, typing out the whole no warnings 'uninitialized'; seems excessive.

For me, at least, the middle ground that calls for "no warnings" is fairly narrow but does exist.