I will only slap a "use 5.012;" label on my code if there's actually anything in my code that won't run on 5.010.
I will still write 'use strict;' even if I do a 'use 5.012'
Me too. I've been requiring a Perl version in Makefile if necessary, and I use features to grab the features I use in the scripts and modules.
or "this code will trigger a bug in 5.YYY, which was fixed in 5.XXX".
There wouldn't be a need for a pragma in that scenario. features is used for backwards incompatible changes, not pure bug fixes.
Now it mean "if you try to run this with 5.YYY, I'm going to keep quiet if you screw up". Not what I expect of a helpful language.
I don't know what you mean. What errors does use 5.xxx; silence?